Annotation of www/75.html, Revision 1.19
1.1 benno 1: <!doctype html>
2: <html lang=en id=release>
3: <head>
4: <meta charset=utf-8>
5:
6: <title>OpenBSD 7.5</title>
7: <meta name="description" content="OpenBSD 7.5">
8: <meta name="viewport" content="width=device-width, initial-scale=1">
9: <link rel="stylesheet" type="text/css" href="openbsd.css">
10: <link rel="canonical" href="https://www.openbsd.org/75.html">
11: </head><body>
12: <h2 id=OpenBSD>
13: <a href="index.html">
14: <i>Open</i><b>BSD</b></a>
15: 7.5
16: </h2>
17:
18: <table>
19: <tr>
20: <td>
21: <a href="images/XXX.jpg">
22: <img width="227" height="303" src="images/XXX-s.gif" alt="XXX"></a>
23: <td>
24: Released XXXMONTH DAY, 2024. (56th OpenBSD release)<br>
25: Copyright 1997-2024, Theo de Raadt.<br>
26: <br>
27: Artwork by XXX.
28: <br>
29: <ul>
30: <li>See the information on <a href="ftp.html">the FTP page</a> for
31: a list of mirror machines.
32: <li>Go to the <code class=reldir>pub/OpenBSD/7.5/</code> directory on
33: one of the mirror sites.
34: <li>Have a look at <a href="errata75.html">the 7.5 errata page</a> for a list
35: of bugs and workarounds.
36: <li>See a <a href="plus75.html">detailed log of changes</a> between the
37: 7.4 and 7.5 releases.
38: <p>
39: <li><a href="https://man.openbsd.org/signify.1">signify(1)</a>
40: pubkeys for this release:<p>
41:
42: <table class=signify>
43: <tr><td>
44: openbsd-75-base.pub:
45: <td>
46: <a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/openbsd-75-base.pub">
47: RWRGj1pRpprAfgeF/rgld4ubduChLvTkigA1Zj7WLDsVA4qfYSWOEI8q
48: </a><tr><td>
49: openbsd-75-fw.pub:
50: <td>
51: RWQ6EsXr4NMYvyLICug3dLHfmbpXlVasF1jbt3GVNQsosgB5+PgaufBu
52: <tr><td>
53: openbsd-75-pkg.pub:
54: <td>
55: RWS/sEFDvf+rjUmS1WROzxH05pB1kB7JRRq76DUGUhCE0Ks8AdpjP5pD
56: <tr><td>
57: openbsd-75-syspatch.pub:
58: <td>
59: RWRAAZC5WcFgn+8b5msDR+yDVCx4ziLaSQI2sy7e4GFY42nFW9p7mP2t
60: </table>
61: </ul>
62: <p>
63: All applicable copyrights and credits are in the src.tar.gz,
64: sys.tar.gz, xenocara.tar.gz, ports.tar.gz files, or in the
65: files fetched via <code>ports.tar.gz</code>.
66: </table>
67:
68: <hr>
69:
70: <section id=new>
71: <h3>What's New</h3>
72: <p>
73: This is a partial list of new features and systems included in OpenBSD 7.5.
74: For a comprehensive list, see the <a href="plus75.html">changelog</a> leading <!-- plus? XXX -->
75: to 7.5.
76:
77: <ul>
78:
79: <!--
80: <li>New/extended platforms:
81: <ul>
82: <li>...
83: </ul>
84: -->
85:
86: <li>Various kernel improvements:
87: <ul>
88: <li>...
89: </ul>
90:
91: <li>SMP Improvements
92: <ul>
1.19 ! bluhm 93: <li>Some network timer run without kernel lock.
! 94: <li>TCP syn cache timer runs with shared net lock.
! 95: <li><a href="https://man.openbsd.org/bind.2">bind(2)</a>
! 96: and <a href="https://man.openbsd.org/connect.2">connect(2)</a>
! 97: system calls can run in parallel.
! 98: <li>Packet counter for <a
! 99: href="https://man.openbsd.org/lo.4">lo(4)</a> loopback
! 100: interface are MP safe.
! 101: <li>Split protocol control block table for UDP into IPv4
! 102: and IPv6 tables to allow concurrent access.
! 103: <li>UDP packets can be sent in parallel by multiple threads.
1.1 benno 104: </ul>
105:
106: <li>Direct Rendering Manager and graphics drivers
107: <ul>
1.11 jsg 108: <li>Updated <a href="https://man.openbsd.org/drm.4">drm(4)</a>
109: to Linux 6.6.19.
110: <li>New <a href="https://man.openbsd.org/arm64/apldcp.4">apldcp(4)</a> and
111: <a href="https://man.openbsd.org/arm64/apldrm.4">apldrm(4)</a> drivers
112: for Apple display coprocessor.
1.1 benno 113: </ul>
114:
115: <li>VMM/VMD improvements
116: <ul>
1.15 dv 117: <li>Fixed IRQ storm caused by edge-triggered devices such as the uart.
118: <li>Fixed block size calculation for vioscsi devices.
119: <li>Added io instruction length to vm exit information, allowing
120: <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> to perform validation
121: in userspace.
122: <li>Adopted new <a href="https://man.openbsd.org/imsg_init.3">imsg_get_*(3)</a>
123: api.
124: <li>Rewrote vionet devices to allow zero-copy data transfers between host and
125: guest.
126: <li>Improved error messages related to <a href="https://man.openbsd.org/getgrnam.3">
127: getgrnam(3)</a> usage and out of <a href="https://man.openbsd.org/tap.4">tap(4)
128: </a> device conditions.
129: <li>Fixed various things found by smatch static analyzer.
130: <li>Fixed various file descriptor lifecycle issues and leaks across
131: <a href="https://man.openbsd.org/fork.2">fork(2)</a>/
132: <a href="https://man.openbsd.org/execve.2">execve(2)</a> usage.
133: <li>Added multi-threading support to vionet device emulation, improving latency.
134: <li>Fixed <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> instability on Intel
135: VMX hosts by updating GDTR & TR if vcpu moves host cpus.
136: <li>Added EPT flushing upon <a href="https://man.openbsd.org/vmm.4">vmm(4)</a>
137: enabling VMX mode.
138: <li>Added branch predictor flushing if IBPB is supported.
139: <li>Corrected restoring GDTR and IDTR limits upon VMX guest exit.
140: <li>Corrected handling of CPUID 0xd subleaves
141: <li>Added additional use of VERW and register clobbering to mitigate RFDS
142: vulnerabilities on Intel Atom cores.
1.1 benno 143: </ul>
144:
145: <li>Various new userland features:
146: <ul>
147: <li>...
148: </ul>
149:
150: <li>Various bugfixes and tweaks in userland:
151: <ul>
152: <li>...
153: </ul>
154:
155: <li>Improved hardware support and driver bugfixes, including:
156: <ul>
157: <!-- new drivers -->
158: <li>...
159:
160: <!-- other -->
161: <li>...
162: </ul>
163:
164: <li>New or improved network hardware support:
165: <ul>
166: <li>...
167: </ul>
168:
169: <li>Added or improved wireless network drivers:
170: <ul>
1.14 stsp 171: <li>Introduce <a href="https://man.openbsd.org/qwx.4">qwx(4)</a>,
172: a port of the Linux ath11k driver for QCNFA765 devices.
173: Available on the amd64 and arm64 platforms.
174: <li>Fix Tx rate selection for management frames in
175: <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.
176: <li>Fix <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> loading the wrong
177: firmware image on some devices.
178: <li>Make <a href="https://man.openbsd.org/bfwm.4">bwfm(4)</a> work with MAC
179: addresses set via ifconfig lladdr.
180: <li>Ensure that <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> uses the
181: 80MHz primary channel index announced in beacons.
182: <li>Avoid using MCS-9 in <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>
183: Tx rate selection if 40 MHz is disabled to prevent firmware errors.
184: <li>Ensure that <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and
185: <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> devices announce VHT
186: capabilities in probe requests.
187: <li>Fix bug in <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>,
188: <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>, and
189: <a href="https://man.openbsd.org/iwn.4">iwn(4)</a> which could result
190: in some channels missing from scan results.
191: <li>Enable <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> on the
192: arm64 platform.
1.1 benno 193: </ul>
194:
195: <li>IEEE 802.11 wireless stack improvements and bugfixes:
196: <ul>
1.14 stsp 197: <li> Ignore 40/80 MHz wide channel configurations which do not appear
198: in the 802.11ac spec. This prevents device firmware errors which
199: occurred when an access point announced an invalid channel configuration.
1.1 benno 200: </ul>
201:
202: <li>Installer, upgrade and bootloader improvements:
203: <ul>
204: <li>...
205: </ul>
206:
207: <li>Security improvements:
208: <ul>
209: <li>...
210: </ul>
211:
212: <li>Changes in the network stack:
213: <ul>
1.19 ! bluhm 214: <li>Enable IPv6 support in <a
! 215: href="https://man.openbsd.org/ppp.4">ppp(4)</a>
! 216: <li>Socket with sequenced packet type and control messages
! 217: handle end of record correctly.
! 218: <li>The routing table has a generaton number. That means
! 219: cached routes at sockets will be invalidated when the routing
! 220: table changes. Especially with dynamic routing daemons
! 221: local connections use the up to date route.
! 222: <li>Route cache hits an misses are printed in
! 223: <a href="https://man.openbsd.org/netstat.1">netstat(1)</a>
! 224: statistics.
1.1 benno 225: </ul>
226:
227: <li>The following changes were made to the <a
228: href="https://man.openbsd.org/pf.4">pf(4)</a> firewall:
229: <ul>
1.19 ! bluhm 230: <li>tcpdump on <a
! 231: href="https://man.openbsd.org/pflog.4">pflog(4)</a> interface
! 232: shows packets dropped by the default rule with the "block"
! 233: action. Although the default rules is a "pass" rule, it
! 234: blocks malformed packets. Now this is correctly logged.
1.1 benno 235: </ul>
236:
237: <li>Routing daemons and other userland network improvements:
238: <ul>
239:
240: <li>IPsec support was improved:
241: <ul>
1.18 denis 242: <li>...
1.1 benno 243: </ul>
244:
245: <li>In <a href="https://man.openbsd.org/bgpd.8">bgpd(8)</a>,
246: <ul>
1.18 denis 247: <li>...
1.1 benno 248: </ul>
249:
1.2 benno 250: <li><a href="https://man.openbsd.org/rpki-client.8">rpki-client(8)</a> saw these and more changes:
1.1 benno 251: <ul>
1.2 benno 252: <li>Add ability to constrain an RPKI Trust Anchor's effective signing
253: authority to a limited set of Internet numbers. This allows Relying
254: Parties to enjoy the potential benefits of assuming trust, but within
255: a bounded scope.
256: <li>Following a 'failed fetch' (described in RFC 9286), emit a warning and
257: continue with a previously cached Manifest file.
258: <li>Emit a warning when the remote repository presents a Manifest with an
259: unexpected manifestNumber.
260: <li>Improved CRL extension checking.
261: <li>Experimental support for the P-256 signature algorithm.
262: <!-- 8.8. -->
263: <li>A failed manifest fetch could result in a NULL pointer dereference or
264: a use after free.
265: <li>Reject non-conforming RRDP delta elements that contain neither publish
266: nor a withdraw element and fall back to the RRDP snapshot.
267: <li>Refactoring and minor bug fixes in the warning display functions.
268: <!-- 8.9 -->
269: <li>The handling of manifests fetched via rsync or RRDP was reworked to
270: fully conform to RFC 9286.
271: <li>Fix a race condition between closing an idle connection and scheduling a
272: new request on it.
273: <li>The evaluation time specified with -P now also applies to trust anchor
274: certificates.
275: <li>Check that the entire CMS eContent was consumed. Previously, trailing
276: data would be silently discarded on deserialization of products.
277: <li>In file mode do not consider overclaiming intermediate CA certificates
278: as invalid. OAA warning is still issued.
279: <li>Print the revocation time of certificates in file mode.
280: <li>Be more careful when converting OpenSSL numeric identifiers (NIDs)
281: to strings.
282: <!-- 9.0 -->
283: <li>Added support for RPKI Signed Prefix Lists.
284: <li>Added an -x flag to opt into parsing and evaluation of file types that are
285: still considered experimental.
286: <li>Added a metric to track the number of new files that were moved to the
287: validated cache.
288: <li>Ensure that the FileAndHashes list in a Manifest contains no duplicate
289: file names and no duplicate hashes.
1.1 benno 290: </ul>
291:
292: <li>In <a href="https://man.openbsd.org/smtpd.8">smtpd(8)</a>,
293: <ul>
1.5 op 294: <li>Add <code>Message-Id</code> as needed for messages received on
295: the submission port.
296: <li>Added support for RFC 7505 "Null MX" handling and treat
297: an MX of "localhost" as it were a "Null MX".
298: <li>Allow inline tables and filter listings in
299: <a href="https://man.openbsd.org/smtpd.conf.5">smtpd.conf(5)</a>
300: to span over multiple lines.
301: <li>Enabled <abbr title="Delivery Status Notification">DSN</abbr>
302: for the implicit socket too.
303: <li>Added the
304: <a href="https://man.openbsd.org/smtpd.conf.5#no-dsn~2">no-dsn</a>
305: option for <code>listen on socket</code> too.
306: <li>Reject headers that start with a space or a tab.
307: <li>Fixed parsing of the <code>ORCPT</code> parameter.
308: <li>Fixed table lookups of IPv6 addresses.
309: <li>Fixed handling of escape characters in To, From and Cc headers.
310: <li>Run <abbr title="Local Mail Transfer Protocol">LMTP</abbr>
311: deliveries as the recipient user again.
312: <li>Disallow custom commands and file reading in root's
313: <code>.forward</code> file.
314: <li>Do not process other users <code>.forward</code> files when
315: an alternate delivery user is provided in a dispatcher.
316: <li>Unify the <a href="https://man.openbsd.org/table.5">table(5)</a>
317: parser used in
318: <a href="https://man.openbsd.org/smtpd.8">smtpd(8)</a> and
319: <a href="https://man.openbsd.org/makemap.8">makemap(8)</a>.
320: <li>Allow to use <a href="https://man.openbsd.org/table.5">table(5)</a>
321: mappings on various match constraints.
1.1 benno 322: </ul>
323:
324: <li>Many other changes in various network programs and libraries:
325: <ul>
1.19 ! bluhm 326: <li>If a DNS name is configured as remote syslog server,
! 327: <a href="https://man.openbsd.org/syslogd.8">syslogd(8)</a>
! 328: retries to resolve the name periodically until it succeeds.
! 329: UDP packets that get lost during that period are counted and
! 330: logged later.
1.1 benno 331: <li>...
332: </ul>
333: </ul>
334:
335: <li><a href="https://man.openbsd.org/tmux.1">tmux(1)</a> improvements and bug fixes:
336: <ul>
337: <li>...
338: </ul>
339:
1.3 tb 340: <li>LibreSSL version 3.9.0
1.1 benno 341: <ul>
1.3 tb 342: <li>Portable changes
1.1 benno 343: <ul>
1.3 tb 344: <li>libcrypto no longer exports compat symbols in cmake builds.
345: <li>Most compatibility symbols are prefixed with <code>libressl_</code>
346: to avoid symbol clashes in static links.
347: <li>Fixed various warnings on Windows.
348: <li>Removed assert pop-ups with Windows debug builds.
349: <li>Fixed crashes and hangs in Windows ARM64 builds.
350: <li>Improved control-flow enforcement (CET) support.
1.1 benno 351: </ul>
1.3 tb 352: <li>Internal improvements
1.1 benno 353: <ul>
1.3 tb 354: <li>Converted uses of <code>OBJ_bsearch_()</code> to standard
355: <a href="https://man.openbsd.org/bsearch">bsearch(3)</a>.
356: <li>Greatly simplified <code>by_file_ctrl()</code>.
357: <li>Simplified and cleaned up the OBJ_ API.
358: <li>Cleaned up the <a href="https://man.openbsd.org/EVP_CipherInit">EVP_Cipher{Init,Update,Final}(3)</a> implementations.
359: <li>Removed unused function pointers from X.509 stores and contexts.
360: <li>A lot of cleanup and reorganization in EVP.
361: <li>Removed all remaining <code>ENGINE</code> tentacles.
362: <li>Simplified internals of <code>X509_TRUST</code> handling.
363: <li>Made deletion from a <a href="https://man.openbsd.org/lh_delete">lhash</a>
364: doall callback safe.
365: <li>Rewrote <a href="https://man.openbsd.org/BIO_dump">BIO_dump*(3)</a> internals
366: to be less bad.
1.1 benno 367: </ul>
1.3 tb 368: <li>Documentation improvements
1.1 benno 369: <ul>
1.3 tb 370: <li><code>ENGINE</code> documentation was updated to reflect reality.
371: <li>Made EVP API documentation more accurate and less incoherent.
372: <li>Call out some shortcomings of the <code>EC_KEY_set_*</code> API explicitly.
1.1 benno 373: </ul>
1.3 tb 374: <li>Testing and proactive security
1.1 benno 375: <ul>
1.3 tb 376: <li>Bug fixes and simplifications in the Wycheproof tests.
1.1 benno 377: </ul>
1.3 tb 378: <li>Compatibility changes
1.1 benno 379: <ul>
1.3 tb 380: <li>Added ChaCha20 and chacha20 aliases for ChaCha.
381: <li><a href="https://man.openbsd.org/SSL_library_init">SSL_library_init(3)</a>
382: now has the same effect as OPENSSL_init_ssl().
383: <li><code>EVP_add_{cipher,digest}()</code> were removed. From the <code>OBJ_NAME</code> API,
384: only <a href="https://man.openbsd.org/OBJ_NAME_do_all">OBJ_NAME_do_all*()</a> remain.
385: In particular, it is no longer possible to add aliases for ciphers and digests.
386: <li>The thread unsafe global tables are no longer supported. It is no
387: longer possible to add aliases for ciphers and digests, custom ASN.1
388: strings table entries, ASN.1 methods, PKEY methods, digest methods,
389: CRL methods, purpose and trust identifiers, or X.509 extensions.
390: <li>Removed the _cb() and _fp() versions of
391: <a href="https://man.openbsd.org/BIO_dump">BIO_dump{,_indent}()</a>.
392: <li><code>BIO_set()</code> was removed.
393: <li><code>BIO_{sn,v,vsn}printf()</code> were removed.
394: <li>Turn the long dysfunctional
395: <a href="https://man.openbsd.org/openssl(1)">openssl(1)</a>
396: <code>s_client -pause</code> into a noop.
397: <li><a href="https://man.openbsd.org/openssl(1)">openssl(1)</a> <code>x509</code>
398: now supports <code>-new</code>, <code>-force_pubkey</code>, <code>-multivalue-rdn</code>,
399: <code>-set_issuer</code> <code>-set_subject</code>, and <code>-utf8</code>.
400: <li>Support ECDSA with SHA-3 signature algorithms.
401: <li>Support HMAC with truncated SHA-2 and SHA-3 as PBE PRF.
402: <li>GOST and STREEBOG support was removed.
403: <li><code>CRYPTO_THREADID</code>, <code>_LHASH</code>, <code>_STACK</code> and
404: <code>X509_PURPOSE</code> are now opaque, <code>X509_CERT_AUX</code> and
405: <code>X509_TRUST</code> were removed from the public API.
406: <li><a href="https://man.openbsd.org/ASN1_STRING_TABLE_get()">ASN1_STRING_TABLE_get(3)</a>
407: and <a href="https://man.openbsd.org/X509_PURPOSE_get0">X509_PURPOSE_get0*(3)</a> now
408: return const pointers.
409: <li><code>EVP_{CIPHER,MD}_CTX_init()</code>'s signatures and semantics now match
410: OpenSSL's behavior.
411: <li><code>sk_find_ex()</code> and <code>OBJ_bsearch_()</code> were removed.
412: <li><a href="https://man.openbsd.org/CRYPTO_malloc">CRYPTO_malloc(3)</a> was fixed to use
413: <code>size_t</code> argument. <code>CRYPTO_malloc()</code>
414: and <code>CRYPTO_free()</code> now accept file and line arguments.
415: <li>A lot of decrepit CRYPTO memory API was removed.
1.1 benno 416: </ul>
417: <li>Bug fixes
418: <ul>
1.3 tb 419: <li>Fixed aliasing issues in <code>BN_mod_exp_simple()</code> and <code>BN_mod_exp_recp()</code>.
420: <li>Fixed numerous misuses of
421: <a href="https://man.openbsd.org/X509_ALGOR_set0">X509_ALGOR_set0(3)</a>
422: resulting in leaks and potentially incorrect encodings.
423: <li>Fixed potential double free in
424: <a href="https://man.openbsd.org/X509v3_asid_add_id_or_range">X509v3_asid_add_id_or_range(3)</a>.
425: <li>Stopped using <code>ASN1_time_parse()</code> outside of libcrypto.
426: <li>Prepared <a href="https://man.openbsd.org/OPENSSL_gmtime">OPENSSL_gmtime(3)</a> and
427: <a href="https://man.openbsd.org/OPENSSL_timegm">OPENSSL_timegm(3)</a> as public API
428: wrappers of internal functions compatible with BoringSSL API.
429: <li>Removed <code>print_bin()</code> to avoid overwriting the stack with 5 bytes
430: of <code>" "</code> when ECPK parameters are printed with large
431: indentation.
432: <li>Avoid a <code>NULL</code> dereference after memory allocation failure during TLS
433: version downgrade.
434: <li>Fixed various bugs in CMAC internals.
435: <li>Fixed 4-byte overreads in GHASH assembly on amd64 and i386.
436: <li>Fixed various NULL dereferences in PKCS #12 code due to mishandling
437: of OPTIONAL content in PKCS #7 ContentInfo.
438: <li>Aligned <a href="https://man.openbsd.org/SSL_shutdown">SSL_shutdown(3)</a>
439: behavior in TLSv1.3 with the legacy stack.
440: <li>Fixed the new X.509 verifier to find trust anchors in the trusted
441: stack.
1.1 benno 442: </ul>
443: </ul>
444:
1.16 djm 445: <li>OpenSSH 9.6 and OpenSSH 9.7
1.1 benno 446: <ul>
1.16 djm 447: <li>Security fixes
1.1 benno 448: <ul>
1.16 djm 449: <li><a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>, <a href='https://man.openbsd.org/sshd.8'>sshd(8)</a>: implement protocol extensions to thwart the
450: so-called "Terrapin attack" discovered by Fabian Bäumer, Marcus
451: Brinkmann and Jörg Schwenk. This attack allows a MITM to effect a
452: limited break of the integrity of the early encrypted SSH transport
453: protocol by sending extra messages prior to the commencement of
454: encryption, and deleting an equal number of consecutive messages
455: immediately after encryption starts. A peer SSH client/server
456: would not be able to detect that messages were deleted.
457:
458: <br>While cryptographically novel, the security impact of this attack
459: is fortunately very limited as it only allows deletion of
460: consecutive messages, and deleting most messages at this stage of
1.17 gnezdo 461: the protocol prevents user authentication from proceeding and
1.16 djm 462: results in a stuck connection.
463:
464: <br>The most serious identified impact is that it lets a MITM to
465: delete the SSH2_MSG_EXT_INFO message sent before authentication
466: starts, allowing the attacker to disable a subset of the keystroke
467: timing obfuscation features introduced in OpenSSH 9.5. There is no
468: other discernable impact to session secrecy or session integrity.
469:
470: <li><a href='https://man.openbsd.org/ssh-agent.1'>ssh-agent(1)</a>: when adding PKCS#11-hosted private keys while
471: specifying destination constraints, if the PKCS#11 token returned
472: multiple keys then only the first key had the constraints applied.
473: Use of regular private keys, FIDO tokens and unconstrained keys
474: are unaffected.
475:
476: <li><a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>: if an invalid user or hostname that contained shell
477: metacharacters was passed to <a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>, and a ProxyCommand,
478: LocalCommand directive or "match exec" predicate referenced the
479: user or hostname via %u, %h or similar expansion token, then
480: an attacker who could supply arbitrary user/hostnames to <a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>
481: could potentially perform command injection depending on what
482: quoting was present in the user-supplied <a href='https://man.openbsd.org/ssh_config.5'>ssh_config(5)</a> directive.
483:
484: <br>OpenSSH 9.6 now
485: bans most shell metacharacters from user and hostnames supplied
486: via the command-line. This countermeasure is not guaranteed to be
487: effective in all situations, as it is infeasible for <a href='https://man.openbsd.org/ssh.1'>ssh(1)</a> to
488: universally filter shell metacharacters potentially relevant to
489: user-supplied commands.
490:
491: <br>User/hostnames provided via <a href='https://man.openbsd.org/ssh_config.5'>ssh_config(5)</a> are not subject to these
492: restrictions, allowing configurations that use strange names to
493: continue to be used, under the assumption that the user knows what
494: they are doing in their own configuration files.
1.1 benno 495: </ul>
496: <li>New features
497: <ul>
1.16 djm 498: <li><a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>, <a href='https://man.openbsd.org/sshd.8'>sshd(8)</a>: add a "global" ChannelTimeout type that watches
499: all open channels and will close all open channels if there is no
500: traffic on any of them for the specified interval. This is in
501: addition to the existing per-channel timeouts added recently.
502: <br>This supports situations like having both session and x11
503: forwarding channels open where one may be idle for an extended
504: period but the other is actively used. The global timeout could
505: close both channels when both have been idle for too long.
506:
507: <li>All: make DSA key support compile-time optional, defaulting to on.
1.1 benno 508: </ul>
509: <li>Bugfixes
510: <ul>
1.16 djm 511: <li><a href='https://man.openbsd.org/sshd.8'>sshd(8)</a>: don't append an unnecessary space to the end of subsystem
512: arguments (<a href='https://bugzilla.mindrot.org/show_bug.cgi?id=3667'>bz3667</a>)
513:
514: <li><a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>: fix the multiplexing "channel proxy" mode, broken when
515: keystroke timing obfuscation was added. (<a href='https://github.com/openssh/openssh-portable/pull/463'>GHPR#463</a>)
516:
517: <li><a href='https://man.openbsd.org/ssh.1'>ssh(1)</a>, <a href='https://man.openbsd.org/sshd.8'>sshd(8)</a>: fix spurious configuration parsing errors when
518: options that accept array arguments are overridden (<a href='https://bugzilla.mindrot.org/show_bug.cgi?id=3657'>bz3657</a>).
519:
520: <li><a href='https://man.openbsd.org/ssh-agent.1'>ssh-agent(1)</a>: fix potential spin in signal handler (<a href='https://bugzilla.mindrot.org/show_bug.cgi?id=3670'>bz3670</a>)
521:
522: <li>Many fixes to manual pages and other documentation, including
523: <a href='https://github.com/openssh/openssh-portable/pull/462'>GHPR#462</a>, <a href='https://github.com/openssh/openssh-portable/pull/454'>GHPR#454</a>, <a href='https://github.com/openssh/openssh-portable/pull/442'>GHPR#442</a> and <a href='https://github.com/openssh/openssh-portable/pull/441'>GHPR#441</a>.
524:
525: <li>Greatly improve interop testing against PuTTY.
1.1 benno 526: </ul>
527: </ul>
528:
529: <li>Ports and packages:
530: <p>Many pre-built packages for each architecture:
531: <!-- number of FTP packages minus SHA256, SHA256.sig, index.txt -->
532: <ul style="column-count: 3">
1.7 sthen 533: <li>aarch64: 12145
1.6 naddy 534: <li>amd64: 12309
1.1 benno 535: <li>arm: XXX
1.7 sthen 536: <li>i386: 10830
1.1 benno 537: <li>mips64: XXX
538: <li>powerpc: XXX
1.10 sthen 539: <li>powerpc64: 8469
1.1 benno 540: <li>riscv64: XXX
1.8 sthen 541: <li>sparc64: 9432
1.1 benno 542: </ul>
543:
544: <p>Some highlights:
545: <ul style="column-count: 3"><!-- XXX all need to be checked/updated 2024-03-02 -->
1.9 lteo 546: <li>Asterisk 16.30.1, 18.21.0 and 20.6.0
547: <li>Audacity 3.4.2
548: <li>CMake 3.28.3
549: <li>Chromium 122.0.6261.111
550: <li>Emacs 29.2
1.1 benno 551: <li>FFmpeg 4.4.4
552: <li>GCC 8.4.0 and 11.2.0
1.9 lteo 553: <li>GHC 9.6.4
554: <li>GNOME 45
555: <li>Go 1.22.1
556: <li>JDK 8u402, 11.0.22, 17.0.10 and 21.0.2
557: <li>KDE Applications 23.08.4
558: <li>KDE Frameworks 5.115.0
1.13 rsadowsk 559: <li>KDE Plasma 5.27.10
1.9 lteo 560: <li>Krita 5.2.2
561: <li>LLVM/Clang 13.0.0, 16.0.6 and 17.0.6
562: <li>LibreOffice 24.2.1.2
1.1 benno 563: <li>Lua 5.1.5, 5.2.4, 5.3.6 and 5.4.6
1.9 lteo 564: <li>MariaDB 10.9.8
1.1 benno 565: <li>Mono 6.12.0.199
1.9 lteo 566: <li>Mozilla Firefox 123.0.1 and ESR 115.8.0
567: <li>Mozilla Thunderbird 115.8.1
568: <li>Mutt 2.2.13 and NeoMutt 20240201
569: <li>Node.js 18.19.1
570: <li>OCaml 4.14.1
571: <li>OpenLDAP 2.6.7
572: <li>PHP 7.4.33, 8.0.30, 8.1.27, 8.2.16 and 8.3.3
573: <li>Postfix 3.8.6
574: <li>PostgreSQL 16.2
575: <li>Python 2.7.18, 3.9.18, 3.10.13 and 3.11.8
1.13 rsadowsk 576: <li>Qt 5.15.12 (+ kde patches) and 6.6.1
1.1 benno 577: <li>R 4.2.3
1.9 lteo 578: <li>Ruby 3.1.4, 3.2.3 and 3.3.0
579: <li>Rust 1.76.0
580: <li>SQLite 3.44.2
1.1 benno 581: <li>Shotcut 23.07.29
1.9 lteo 582: <li>Sudo 1.9.15.5
583: <li>Suricata 7.0.3
1.1 benno 584: <li>Tcl/Tk 8.5.19 and 8.6.13
1.9 lteo 585: <li>TeX Live 2023
586: <li>Vim 9.1.139 and Neovim 0.9.5
587: <li>Xfce 4.18.1
1.1 benno 588: </ul>
589: <p>
590:
591: <li>As usual, steady improvements in manual pages and other documentation.
592:
593: <li>The system includes the following major components from outside suppliers:
594: <ul><!-- XXX all need to be checked/updated 2024-03-02 -->
1.4 matthieu 595: <li>Xenocara (based on X.Org 7.7 with xserver 21.1.11 + patches,
596: freetype 2.13.0, fontconfig 2.14.2, Mesa 23.1.9, xterm 378,
597: xkeyboard-config 2.20, fonttosfnt 1.2.3 and more)
598: <li>LLVM/Clang 16.0.6 (+ patches)
1.1 benno 599: <li>GCC 4.2.1 (+ patches) and 3.3.6 (+ patches)
1.4 matthieu 600: <li>Perl 5.36.3 (+ patches)
601: <li>NSD 4.8.0
1.1 benno 602: <li>Unbound 1.18.0
603: <li>Ncurses 5.7
604: <li>Binutils 2.17 (+ patches)
605: <li>Gdb 6.3 (+ patches)
1.4 matthieu 606: <li>Awk January 22, 2024
607: <li>Expat 2.6.0
608: <li>zlib 1.3.1 (+ patches)
1.1 benno 609: </ul>
610:
611: </ul>
612: </section>
613:
614: <hr>
615:
616: <section id=install>
617: <h3>How to install</h3>
618: <p>
619: Please refer to the following files on the mirror site for
620: extensive details on how to install OpenBSD 7.5 on your machine:
621:
622: <ul>
623: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/alpha/INSTALL.alpha">
624: .../OpenBSD/7.5/alpha/INSTALL.alpha</a>
625: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/amd64/INSTALL.amd64">
626: .../OpenBSD/7.5/amd64/INSTALL.amd64</a>
627: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/arm64/INSTALL.arm64">
628: .../OpenBSD/7.5/arm64/INSTALL.arm64</a>
629: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/armv7/INSTALL.armv7">
630: .../OpenBSD/7.5/armv7/INSTALL.armv7</a>
631: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/hppa/INSTALL.hppa">
632: .../OpenBSD/7.5/hppa/INSTALL.hppa</a>
633: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/i386/INSTALL.i386">
634: .../OpenBSD/7.5/i386/INSTALL.i386</a>
635: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/landisk/INSTALL.landisk">
636: .../OpenBSD/7.5/landisk/INSTALL.landisk</a>
637: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/loongson/INSTALL.loongson">
638: .../OpenBSD/7.5/loongson/INSTALL.loongson</a>
639: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/luna88k/INSTALL.luna88k">
640: .../OpenBSD/7.5/luna88k/INSTALL.luna88k</a>
641: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/macppc/INSTALL.macppc">
642: .../OpenBSD/7.5/macppc/INSTALL.macppc</a>
643: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/octeon/INSTALL.octeon">
644: .../OpenBSD/7.5/octeon/INSTALL.octeon</a>
645: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/powerpc64/INSTALL.powerpc64">
646: .../OpenBSD/7.5/powerpc64/INSTALL.powerpc64</a>
647: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/riscv64/INSTALL.riscv64">
648: .../OpenBSD/7.5/riscv64/INSTALL.riscv64</a>
649: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.5/sparc64/INSTALL.sparc64">
650: .../OpenBSD/7.5/sparc64/INSTALL.sparc64</a>
651: </ul>
652: </section>
653:
654: <hr>
655:
656: <section id=quickinstall>
657: <p>
658: Quick installer information for people familiar with OpenBSD, and the use of
659: the "<a href="https://man.openbsd.org/disklabel.8">disklabel</a> -E" command.
660: If you are at all confused when installing OpenBSD, read the relevant
661: INSTALL.* file as listed above!
662:
663: <h3>OpenBSD/alpha:</h3>
664:
665: <p>
666: If your machine can boot from CD, you can write <i>install75.iso</i> or
667: <i>cd75.iso</i> to a CD and boot from it.
668: Refer to INSTALL.alpha for more details.
669:
670: <h3>OpenBSD/amd64:</h3>
671:
672: <p>
673: If your machine can boot from CD, you can write <i>install75.iso</i> or
674: <i>cd75.iso</i> to a CD and boot from it.
675: You may need to adjust your BIOS options first.
676:
677: <p>
678: If your machine can boot from USB, you can write <i>install75.img</i> or
679: <i>miniroot75.img</i> to a USB stick and boot from it.
680:
681: <p>
682: If you can't boot from a CD, floppy disk, or USB,
683: you can install across the network using PXE as described in the included
684: INSTALL.amd64 document.
685:
686: <p>
687: If you are planning to dual boot OpenBSD with another OS, you will need to
688: read INSTALL.amd64.
689:
690: <h3>OpenBSD/arm64:</h3>
691:
692: <p>
1.12 jsg 693: If your machine can boot from CD, you can write <i>install75.iso</i> or
694: <i>cd75.iso</i> to a CD and boot from it.
695:
696: <p>
697: To boot from disk, write <i>install75.img</i> or <i>miniroot75.img</i> to a
698: disk and boot from it after connecting to the serial console. Refer to
699: INSTALL.arm64 for more details.
1.1 benno 700:
701: <h3>OpenBSD/armv7:</h3>
702:
703: <p>
704: Write a system specific miniroot to an SD card and boot from it after connecting
705: to the serial console. Refer to INSTALL.armv7 for more details.
706:
707: <h3>OpenBSD/hppa:</h3>
708:
709: <p>
710: Boot over the network by following the instructions in INSTALL.hppa or the
711: <a href="hppa.html#install">hppa platform page</a>.
712:
713: <h3>OpenBSD/i386:</h3>
714:
715: <p>
716: If your machine can boot from CD, you can write <i>install75.iso</i> or
717: <i>cd75.iso</i> to a CD and boot from it.
718: You may need to adjust your BIOS options first.
719:
720: <p>
721: If your machine can boot from USB, you can write <i>install75.img</i> or
722: <i>miniroot75.img</i> to a USB stick and boot from it.
723:
724: <p>
725: If you can't boot from a CD, floppy disk, or USB,
726: you can install across the network using PXE as described in
727: the included INSTALL.i386 document.
728:
729: <p>
730: If you are planning on dual booting OpenBSD with another OS, you will need to
731: read INSTALL.i386.
732:
733: <h3>OpenBSD/landisk:</h3>
734:
735: <p>
736: Write <i>miniroot75.img</i> to the start of the CF
737: or disk, and boot normally.
738:
739: <h3>OpenBSD/loongson:</h3>
740:
741: <p>
742: Write <i>miniroot75.img</i> to a USB stick and boot bsd.rd from it
743: or boot bsd.rd via tftp.
744: Refer to the instructions in INSTALL.loongson for more details.
745:
746: <h3>OpenBSD/luna88k:</h3>
747:
748: <p>
749: Copy 'boot' and 'bsd.rd' to a Mach or UniOS partition, and boot the bootloader
750: from the PROM, and then bsd.rd from the bootloader.
751: Refer to the instructions in INSTALL.luna88k for more details.
752:
753: <h3>OpenBSD/macppc:</h3>
754:
755: <p>
756: Burn the image from a mirror site to a CDROM, and power on your machine
757: while holding down the <i>C</i> key until the display turns on and
758: shows <i>OpenBSD/macppc boot</i>.
759:
760: <p>
761: Alternatively, at the Open Firmware prompt, enter <i>boot cd:,ofwboot
762: /7.5/macppc/bsd.rd</i>
763:
764: <h3>OpenBSD/octeon:</h3>
765:
766: <p>
767: After connecting a serial port, boot bsd.rd over the network via DHCP/tftp.
768: Refer to the instructions in INSTALL.octeon for more details.
769:
770: <h3>OpenBSD/powerpc64:</h3>
771:
772: <p>
773: To install, write <i>install75.img</i> or <i>miniroot75.img</i> to a
774: USB stick, plug it into the machine and choose the <i>OpenBSD
775: install</i> menu item in Petitboot.
776: Refer to the instructions in INSTALL.powerpc64 for more details.
777:
778: <h3>OpenBSD/riscv64:</h3>
779:
780: <p>
781: To install, write <i>install75.img</i> or <i>miniroot75.img</i> to a
782: USB stick, and boot with that drive plugged in.
783: Make sure you also have the microSD card plugged in that shipped with the
784: HiFive Unmatched board.
785: Refer to the instructions in INSTALL.riscv64 for more details.
786:
787: <h3>OpenBSD/sparc64:</h3>
788:
789: <p>
790: Burn the image from a mirror site to a CDROM, boot from it, and type
791: <i>boot cdrom</i>.
792:
793: <p>
794: If this doesn't work, or if you don't have a CDROM drive, you can write
795: <i>floppy75.img</i> or <i>floppyB75.img</i>
796: (depending on your machine) to a floppy and boot it with <i>boot
797: floppy</i>. Refer to INSTALL.sparc64 for details.
798:
799: <p>
800: Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install
801: will most likely fail.
802:
803: <p>
804: You can also write <i>miniroot75.img</i> to the swap partition on
805: the disk and boot with <i>boot disk:b</i>.
806:
807: <p>
808: If nothing works, you can boot over the network as described in INSTALL.sparc64.
809: </section>
810:
811: <hr>
812:
813: <section id=upgrade>
814: <h3>How to upgrade</h3>
815: <p>
816: If you already have an OpenBSD 7.4 system, and do not want to reinstall,
817: upgrade instructions and advice can be found in the
818: <a href="faq/upgrade75.html">Upgrade Guide</a>.
819: </section>
820:
821: <hr>
822:
823: <section id=sourcecode>
824: <h3>Notes about the source code</h3>
825: <p>
826: <code>src.tar.gz</code> contains a source archive starting at <code>/usr/src</code>.
827: This file contains everything you need except for the kernel sources,
828: which are in a separate archive.
829: To extract:
830: <blockquote><pre>
831: # <kbd>mkdir -p /usr/src</kbd>
832: # <kbd>cd /usr/src</kbd>
833: # <kbd>tar xvfz /tmp/src.tar.gz</kbd>
834: </pre></blockquote>
835: <p>
836: <code>sys.tar.gz</code> contains a source archive starting at <code>/usr/src/sys</code>.
837: This file contains all the kernel sources you need to rebuild kernels.
838: To extract:
839: <blockquote><pre>
840: # <kbd>mkdir -p /usr/src/sys</kbd>
841: # <kbd>cd /usr/src</kbd>
842: # <kbd>tar xvfz /tmp/sys.tar.gz</kbd>
843: </pre></blockquote>
844: <p>
845: Both of these trees are a regular CVS checkout. Using these trees it
846: is possible to get a head-start on using the anoncvs servers as
847: described <a href="anoncvs.html">here</a>.
848: Using these files
849: results in a much faster initial CVS update than you could expect from
850: a fresh checkout of the full OpenBSD source tree.
851: </section>
852:
853: <hr>
854:
855: <section id=ports>
856: <h3>Ports Tree</h3>
857: <p>
858: A ports tree archive is also provided. To extract:
859: <blockquote><pre>
860: # <kbd>cd /usr</kbd>
861: # <kbd>tar xvfz /tmp/ports.tar.gz</kbd>
862: </pre></blockquote>
863: <p>
864: Go read the <a href="faq/ports/index.html">ports</a> page
865: if you know nothing about ports
866: at this point. This text is not a manual of how to use ports.
867: Rather, it is a set of notes meant to kickstart the user on the
868: OpenBSD ports system.
869: <p>
870: The <i>ports/</i> directory represents a CVS checkout of our ports.
871: As with our complete source tree, our ports tree is available via
872: <a href="anoncvs.html">AnonCVS</a>.
873: So, in order to keep up to date with the -stable branch, you must make
874: the <i>ports/</i> tree available on a read-write medium and update the tree
875: with a command like:
876: <blockquote><pre>
877: # <kbd>cd /usr/ports</kbd>
878: # <kbd>cvs -d anoncvs@server.openbsd.org:/cvs update -Pd -rOPENBSD_7_5</kbd>
879: </pre></blockquote>
880: <p>
881: [Of course, you must replace the server name here with a nearby anoncvs
882: server.]
883: <p>
884: Note that most ports are available as packages on our mirrors. Updated
885: ports for the 7.5 release will be made available if problems arise.
886: <p>
887: If you're interested in seeing a port added, would like to help out, or just
888: would like to know more, the mailing list
889: <a href="mail.html">ports@openbsd.org</a> is a good place to know.
890: </section>
891: </body>
892: </html>
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