Annotation of www/errata56.html, Revision 1.66
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3: <meta charset=utf-8>
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1.45 tj 5: <title>OpenBSD 5.6 Errata</title>
1.1 jsg 6: <meta name="description" content="the OpenBSD CD errata page">
1.44 deraadt 7: <meta name="viewport" content="width=device-width, initial-scale=1">
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1.1 jsg 10:
11: <!--
12: IMPORTANT REMINDER
13: IF YOU ADD A NEW ERRATUM, MAIL THE PATCH TO TECH AND ANNOUNCE
14: -->
15:
16:
1.57 bentley 17: <h2 id=OpenBSD>
1.44 deraadt 18: <a href="index.html">
1.57 bentley 19: <i>Open</i><b>BSD</b></a>
20: 5.6 Errata
1.45 tj 21: </h2>
1.44 deraadt 22: <hr>
1.1 jsg 23:
24: For errata on a certain release, click below:<br>
1.59 schwarze 25: <a href="errata20.html">2.0</a>,
1.1 jsg 26: <a href="errata21.html">2.1</a>,
27: <a href="errata22.html">2.2</a>,
28: <a href="errata23.html">2.3</a>,
29: <a href="errata24.html">2.4</a>,
30: <a href="errata25.html">2.5</a>,
31: <a href="errata26.html">2.6</a>,
32: <a href="errata27.html">2.7</a>,
33: <a href="errata28.html">2.8</a>,
34: <a href="errata29.html">2.9</a>,
35: <a href="errata30.html">3.0</a>,
36: <a href="errata31.html">3.1</a>,
37: <a href="errata32.html">3.2</a>,
38: <a href="errata33.html">3.3</a>,
39: <a href="errata34.html">3.4</a>,
40: <a href="errata35.html">3.5</a>,
1.59 schwarze 41: <br>
1.1 jsg 42: <a href="errata36.html">3.6</a>,
43: <a href="errata37.html">3.7</a>,
44: <a href="errata38.html">3.8</a>,
45: <a href="errata39.html">3.9</a>,
46: <a href="errata40.html">4.0</a>,
47: <a href="errata41.html">4.1</a>,
48: <a href="errata42.html">4.2</a>,
49: <a href="errata43.html">4.3</a>,
50: <a href="errata44.html">4.4</a>,
51: <a href="errata45.html">4.5</a>,
52: <a href="errata46.html">4.6</a>,
53: <a href="errata47.html">4.7</a>,
54: <a href="errata48.html">4.8</a>,
55: <a href="errata49.html">4.9</a>,
56: <a href="errata50.html">5.0</a>,
57: <a href="errata51.html">5.1</a>,
1.59 schwarze 58: <br>
1.1 jsg 59: <a href="errata52.html">5.2</a>,
60: <a href="errata53.html">5.3</a>,
61: <a href="errata54.html">5.4</a>,
1.21 deraadt 62: <a href="errata55.html">5.5</a>,
1.39 deraadt 63: <a href="errata57.html">5.7</a>,
1.43 deraadt 64: <a href="errata58.html">5.8</a>,
1.46 deraadt 65: <a href="errata59.html">5.9</a>,
1.49 tj 66: <a href="errata60.html">6.0</a>,
1.53 deraadt 67: <a href="errata61.html">6.1</a>,
1.54 deraadt 68: <a href="errata62.html">6.2</a>,
1.55 deraadt 69: <a href="errata63.html">6.3</a>,
1.56 deraadt 70: <a href="errata64.html">6.4</a>,
1.58 deraadt 71: <a href="errata65.html">6.5</a>,
1.60 deraadt 72: <a href="errata66.html">6.6</a>,
1.61 deraadt 73: <a href="errata67.html">6.7</a>,
1.62 deraadt 74: <a href="errata68.html">6.8</a>,
1.63 tj 75: <br>
1.64 deraadt 76: <a href="errata69.html">6.9</a>,
1.65 deraadt 77: <a href="errata70.html">7.0</a>,
1.66 ! deraadt 78: <a href="errata71.html">7.1</a>,
! 79: <a href="errata72.html">7.2</a>.
1.1 jsg 80: <hr>
81:
82: <p>
1.49 tj 83: Patches for the OpenBSD base system are distributed as unified diffs.
84: Each patch is cryptographically signed with the
1.52 tb 85: <a href="https://man.openbsd.org/OpenBSD-5.6/signify.1">signify(1)</a> tool and contains
1.49 tj 86: usage instructions.
87: All the following patches are also available in one
88: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6.tar.gz">tar.gz file</a>
89: for convenience.
1.1 jsg 90:
91: <p>
1.49 tj 92: Patches for supported releases are also incorporated into the
1.50 tj 93: <a href="stable.html">-stable branch</a>.
1.1 jsg 94:
95: <hr>
96:
97: <ul>
98:
1.51 tb 99: <li id="p001_rxr">
1.57 bentley 100: <strong>001: RELIABILITY FIX: September 5, 2014</strong>
1.1 jsg 101: <i>All architectures</i><br>
102: Incorrect RX ring computation leads to panics under load with bge(4), em(4) and ix(4).
103: <br>
1.48 tb 104: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/001_rxr.patch.sig">
1.2 stsp 105: A source code patch exists which remedies this problem.</a>
106: <p>
107:
1.51 tb 108: <li id="p002_nd6">
1.57 bentley 109: <strong>002: RELIABILITY FIX: October 1, 2014</strong>
1.2 stsp 110: <i>All architectures</i><br>
111: If IPv6 autoconf is active on an interface and the autoconfprivacy extension is used,
112: redundant addresses are added whenever an autoconfprivacy address expires.
113: The autoconfprivacy extension is used by default and can be disabled with ifconfig(8)
114: as a workaround:
115: <pre>
116: # ifconfig em0 -autoconfprivacy
117: </pre>
1.48 tb 118: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/002_nd6.patch.sig">
1.2 stsp 119: A source code patch exists which remedies this problem.</a>
120: <p>
121:
1.51 tb 122: <li id="p003_nginx">
1.57 bentley 123: <strong>003: SECURITY FIX: October 1, 2014</strong>
1.2 stsp 124: <i>All architectures</i><br>
125: nginx can reuse cached SSL sessions in unrelated contexts, allowing virtual
126: host confusion attacks in some configurations.
127: This issue was assigned CVE-2014-3616.
128: <br>
1.48 tb 129: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/003_nginx.patch.sig">
1.1 jsg 130: A source code patch exists which remedies this problem.</a>
131: <p>
132:
1.51 tb 133: <li id="p004_kernexec">
1.57 bentley 134: <strong>004: RELIABILITY FIX: October 20, 2014</strong>
1.4 tedu 135: <i>All architectures</i><br>
136: Executable headers with an unaligned address will trigger a kernel panic.
137: <br>
1.48 tb 138: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/004_kernexec.patch.sig">
1.4 tedu 139: A source code patch exists which remedies this problem.</a>
140: <p>
141:
1.51 tb 142: <li id="p005_nosslv3">
1.57 bentley 143: <strong>005: SECURITY FIX: October 20, 2014</strong>
1.5 tedu 144: <i>All architectures</i><br>
145: This patch disables the SSLv3 protocol by default.
146: <p>
147: <i>
148: Applications depending on SSLv3 may need to be recompiled with
1.51 tb 149: </i>
1.5 tedu 150: <pre> SSL_CTX_clear_option(ctx, SSL_OP_NO_SSLv3);</pre>
1.51 tb 151: <i>
1.5 tedu 152: but we recommend against the continued use of this obsolete protocol.
153: </i>
154: <p>
1.48 tb 155: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/005_nosslv3.patch.sig">
1.5 tedu 156: A source code patch exists which remedies this problem.</a>
157: <p>
158:
1.51 tb 159: <li id="p006_relayd">
1.57 bentley 160: <strong>006: RELIABILITY FIX: November 17, 2014</strong>
1.6 florian 161: <i>All architectures</i><br>
162: Certain http requests can crash relayd.
163: <br>
1.48 tb 164: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/006_relayd.patch.sig">
1.6 florian 165: A source code patch exists which remedies this problem.</a>
166: <p>
167:
1.51 tb 168: <li id="p007_pfctl">
1.57 bentley 169: <strong>007: RELIABILITY FIX: November 17, 2014</strong>
1.7 sthen 170: <i>All architectures</i><br>
1.8 tedu 171: A PF rule using an IPv4 address
172: followed by an IPv6 address and then a dynamic address, e.g. "pass
173: from {192.0.2.1 2001:db8::1} to (pppoe0)", will have an incorrect /32
174: mask applied to the dynamic address.
1.7 sthen 175: <br>
1.48 tb 176: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/007_pfctl.patch.sig">
1.8 tedu 177: A source code patch exists which remedies this problem.</a>
178: <p>
179:
1.51 tb 180: <li id="p008_asr">
1.57 bentley 181: <strong>008: RELIABILITY FIX: November 17, 2014</strong>
1.8 tedu 182: <i>All architectures</i><br>
183: Querying an invalid hostname with gethostbyname(3) could cause a NULL deref.
184: <br>
1.48 tb 185: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/008_asr.patch.sig">
1.7 sthen 186: A source code patch exists which remedies this problem.</a>
187: <p>
188:
1.51 tb 189: <li id="p009_httpd">
1.57 bentley 190: <strong>009: RELIABILITY FIX: November 18, 2014</strong>
1.9 reyk 191: <i>All architectures</i><br>
192: httpd was developed very rapidly in the weeks before 5.6 release, and
193: it has a few flaws. It would be nice to get these flaws fully
194: remediated before the next release, and that requires the community to
195: want to use it. Therefore here is a "jumbo" patch that brings in the
196: most important fixes.
197: <br>
1.48 tb 198: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/009_httpd.patch.sig">
1.9 reyk 199: A source code patch exists which remedies this problem.</a>
1.19 tedu 200: <br>
201: <i>Unfortunately the source tree found on the CD set contains a slightly different
202: checkout, from just before the release was finished and is missing a few httpd
203: commits. Therefore, the patch above will not apply correctly. Users are encouraged
204: to use cvs to get the latest httpd sources if interested.</i>
1.9 reyk 205: <p>
206:
1.51 tb 207: <li id="p010_pipex">
1.57 bentley 208: <strong>010: RELIABILITY FIX: December 5, 2014</strong>
1.10 tedu 209: <i>All architectures</i><br>
210: Several bugs were fixed that allowed a crash from remote when an active pipex
211: session exists.
212: <br>
1.48 tb 213: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/010_pipex.patch.sig">
1.10 tedu 214: A source code patch exists which remedies this problem.</a>
215: <p>
216:
1.51 tb 217: <li id="p011_pppoe">
1.57 bentley 218: <strong>011: RELIABILITY FIX: December 5, 2014</strong>
1.10 tedu 219: <i>All architectures</i><br>
220: An incorrect memcpy call would result in corrupted MAC addresses when
221: using PPPOE.
222: <br>
1.48 tb 223: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/011_pppoe.patch.sig">
1.10 tedu 224: A source code patch exists which remedies this problem.</a>
225: <p>
226:
1.51 tb 227: <li id="p012_unbound">
1.57 bentley 228: <strong>012: RELIABILITY FIX: December 9, 2014</strong>
1.12 tedu 229: <i>All architectures</i><br>
1.13 tedu 230: Fix a denial of service where a malicious authority could make the resolver chase an
231: endless series of delegations. (CVE-2014-8602)
1.12 tedu 232: <br>
1.48 tb 233: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/012_unbound.patch.sig">
1.12 tedu 234: A source code patch exists which remedies this problem.</a>
235: <p>
236:
1.51 tb 237: <li id="p013_virtio">
1.57 bentley 238: <strong>013: RELIABILITY FIX: December 9, 2014</strong>
1.12 tedu 239: <i>All architectures</i><br>
1.13 tedu 240: Missing memory barriers in virtio(4) can lead to hangs with virtio devices,
241: like vio(4) and vioblk(4).
1.12 tedu 242: <br>
1.48 tb 243: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/013_virtio.patch.sig">
1.12 tedu 244: A source code patch exists which remedies this problem.</a>
245: <p>
246:
1.51 tb 247: <li id="p014_xserver">
1.57 bentley 248: <strong>014: SECURITY FIX: December 9, 2014</strong>
1.12 tedu 249: <i>All architectures</i><br>
250: One year after Ilja van Sprundel discovered and reported a large number
251: of issues in the way the X server code base handles requests from X clients,
252: they have been fixed.
253: <br>
254: <a href="http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/">X Advisory</a>
255: <br>
1.48 tb 256: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/014_xserver.patch.sig">
1.12 tedu 257: A source code patch exists which remedies this problem.</a>
258: <p>
259:
1.51 tb 260: <li id="p015_libevent">
1.57 bentley 261: <strong>015: SECURITY FIX: January 13, 2015</strong>
1.15 bluhm 262: <i>All architectures</i><br>
263: Fix CVE-2014-6272 in libevent 1.4 event buffer handling. OpenBSD
264: base uses it for the programs: cu tmux ftp-proxy httpd ldapd relayd
265: tftp-proxy tftpd
266: <br>
267: <a href="http://www.wangafu.net/~nickm/volatile/advisory.txt.asc">Libevent Advisory</a>
268: <br>
1.48 tb 269: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/015_libevent.patch.sig">
1.15 bluhm 270: A source code patch exists which remedies this problem.</a>
271: <p>
1.10 tedu 272:
1.51 tb 273: <li id="p016_xserver">
1.57 bentley 274: <strong>016: SECURITY FIX: March 3, 2015</strong>
1.17 tedu 275: <i>All architectures</i><br>
276: Information leak in the XkbSetGeometry request of X servers.
277: <br>
278: For more information, see the
279: <a href="http://www.x.org/wiki/Development/Security/Advisory-2015-02-10/">X.org advisory</a>.
280: <br>
1.48 tb 281: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/016_xserver.patch.sig">
1.17 tedu 282: A source code patch exists which remedies this problem.</a>
283: <p>
284:
1.51 tb 285: <li id="p017_openssl">
1.57 bentley 286: <strong>017: SECURITY FIX: March 13, 2015</strong>
1.20 tedu 287: <i>All architectures</i><br>
288: Don't permit TLS client connections to be downgraded to weak keys.
289: <br>
1.48 tb 290: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/017_openssl.patch.sig">
1.20 tedu 291: A source code patch exists which remedies this problem.</a>
292: <p>
293:
1.51 tb 294: <li id="p018_freetype">
1.57 bentley 295: <strong>018: SECURITY FIX: March 13, 2015</strong>
1.20 tedu 296: <i>All architectures</i><br>
297: Another fix for buffer overflows in malformed fonts.
298: <br>
1.48 tb 299: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/018_freetype.patch.sig">
1.20 tedu 300: A source code patch exists which remedies this problem.</a>
301: <p>
302:
1.51 tb 303: <li id="p019_libxfont">
1.57 bentley 304: <strong>019: SECURITY FIX: March 18, 2015</strong>
1.22 tedu 305: <i>All architectures</i><br>
306: Buffer overflows in libXfont
307: <br>
308: For more information, see the
309: <a href="http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/">X.org advisory</a>.
310: <br>
1.48 tb 311: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/019_libxfont.patch.sig">
1.23 tedu 312: A source code patch exists which remedies this problem.</a>
1.24 tedu 313: <br>Note that the instructions should read <code>cd /usr/xenocara/lib/libXfont</code>.
1.23 tedu 314: <p>
315:
1.51 tb 316: <li id="p020_openssl">
1.57 bentley 317: <strong>020: SECURITY FIX: March 19, 2015</strong>
1.23 tedu 318: <i>All architectures</i><br>
319: Fix several crash causing defects from OpenSSL.<br>
320: These include:<br>
321: CVE-2015-0209 - Use After Free following d2i_ECPrivatekey error<br>
322: CVE-2015-0286 - Segmentation fault in ASN1_TYPE_cmp<br>
323: CVE-2015-0287 - ASN.1 structure reuse memory corruption<br>
324: CVE-2015-0288 - X509_to_X509_REQ NULL pointer deref<br>
325: CVE-2015-0289 - PKCS7 NULL pointer dereferences<br>
326: <br>
327: Several other issues did not apply or were already fixed.<br>
328: For more information, see the
329: <a href="https://www.openssl.org/news/secadv_20150319.txt">OpenSSL advisory</a>.
330: <br>
1.48 tb 331: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/020_openssl.patch.sig">
1.22 tedu 332: A source code patch exists which remedies this problem.</a>
333: <p>
334:
1.51 tb 335: <li id="p021_smtpd">
1.57 bentley 336: <strong>021: RELIABILITY FIX: April 17, 2015</strong>
1.25 gilles 337: <i>All architectures</i><br>
338: Fix a logic error in smtpd handling of SNI.
339: This could allow a remote user to crash the server or provoke a disconnect of other sessions.
340: <br>
1.48 tb 341: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/021_smtpd.patch.sig">
1.28 deraadt 342: A source code patch exists which remedies this problem.</a>
1.25 gilles 343: <p>
344:
1.51 tb 345: <li id="p022_httpd">
1.57 bentley 346: <strong>022: RELIABILITY FIX: April 30, 2015</strong>
1.26 florian 347: <i>All architectures</i><br>
348: A remote user can crash httpd by forcing the daemon to log to a file
349: before the logging system was initialized.
350: <br>
1.48 tb 351: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/022_httpd.patch.sig">
1.28 deraadt 352: A source code patch exists which remedies this problem.</a>
1.26 florian 353: <p>
354:
1.51 tb 355: <li id="p023_elf">
1.57 bentley 356: <strong>023: SECURITY FIX: April 30, 2015</strong>
1.27 guenther 357: <i>All architectures</i><br>
358: Malformed binaries could trigger kernel panics or view kernel memory.
359: <br>
1.48 tb 360: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/023_elf.patch.sig">
1.28 deraadt 361: A source code patch exists which remedies this problem.</a>
1.27 guenther 362: <p>
363:
1.51 tb 364: <li id="p024_tar">
1.57 bentley 365: <strong>024: SECURITY FIX: April 30, 2015</strong>
1.27 guenther 366: <i>All architectures</i><br>
367: Multiple issues in tar/pax/cpio:
368: <ul>
369: <li>extracting a malicious archive could create files outside of
370: the current directory without using pre-existing symlinks to 'escape',
371: and could change the timestamps and modes on preexisting files
372: <li>tar without -P would permit extraction of paths with ".." components
373: <li>there was a buffer overflow in the handling of pax extension headers
374: </ul>
1.48 tb 375: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/024_tar.patch.sig">
1.31 deraadt 376: A source code patch exists which remedies this problem.</a>
377: <p>
378:
1.51 tb 379: <li id="p025_smtpd">
1.57 bentley 380: <strong>025: RELIABILITY FIX: June 11, 2015</strong>
1.31 deraadt 381: <i>All architectures</i><br>
382: Fix multiple reliability issues in smtpd:
383: <ul>
384: <li>a local user can cause smtpd to fail by writing an invalid imsg to control socket.
385: <li>a local user can prevent smtpd from serving new requests by exhausting descriptors.
386: </ul>
1.48 tb 387: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/025_smtpd.patch.sig">
1.31 deraadt 388: A source code patch exists which remedies this problem.</a>
389: <p>
390:
1.51 tb 391: <li id="p026_openssl">
1.57 bentley 392: <strong>026: SECURITY FIX: June 11, 2015</strong>
1.31 deraadt 393: <i>All architectures</i><br>
394: Fix several defects from OpenSSL:
395: <ul>
396: <li>CVE-2015-1788 - Malformed ECParameters causes infinite loop
397: <li>CVE-2015-1789 - Exploitable out-of-bounds read in X509_cmp_time
398: <li>CVE-2015-1792 - CMS verify infinite loop with unknown hash function
399: </ul>
1.32 doug 400: Note that CMS was already disabled in LibreSSL.
401: Several other issues did not apply or were already fixed and one is under review.<br>
402: For more information, see the
403: <a href="https://www.openssl.org/news/secadv_20150611.txt">OpenSSL advisory</a>.
404: <br>
1.48 tb 405: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/026_openssl.patch.sig">
1.28 deraadt 406: A source code patch exists which remedies this problem.</a>
1.27 guenther 407: <p>
408:
1.51 tb 409: <li id="p027_tcp">
1.57 bentley 410: <strong>027: SECURITY FIX: July 14, 2015</strong>
1.34 deraadt 411: <i>All architectures</i><br>
412: A TCP socket can become confused and not properly cleanup resources.
413: <br>
1.48 tb 414: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/027_tcp_persist.patch.sig">
1.37 deraadt 415: A source code patch exists which remedies this problem.</a>
416: <p>
417:
1.51 tb 418: <li id="p028_execve">
1.57 bentley 419: <strong>028: RELIABILITY FIX: July 26, 2015</strong>
1.37 deraadt 420: <i>All architectures</i><br>
421: A kernel memory leak could be triggered by an unprivileged user in
422: a failure case when using execve under systrace.
423: <br>
1.48 tb 424: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/028_execve.patch.sig">
1.37 deraadt 425: A source code patch exists which remedies this problem.</a>
426: <p>
427:
1.51 tb 428: <li id="p029_patch">
1.57 bentley 429: <strong>029: SECURITY FIX: July 26, 2015</strong>
1.37 deraadt 430: <i>All architectures</i><br>
431: The patch utility could be made to invoke arbitrary commands via
432: the obsolete SCCS and RCS support when processing a crafted input file.
433: This patch deletes the SCCS and RCS support.
434: <br>
1.48 tb 435: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/029_patch.patch.sig">
1.34 deraadt 436: A source code patch exists which remedies this problem.</a>
437: <p>
438:
1.51 tb 439: <li id="p030_patch">
1.57 bentley 440: <strong>030: SECURITY FIX: July 30, 2015</strong>
1.38 deraadt 441: <i>All architectures</i><br>
442: The patch utility could become desyncronized processing ed(1)-style diffs.
443: <br>
1.48 tb 444: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/030_patch.patch.sig">
1.38 deraadt 445: A source code patch exists which remedies this problem.</a>
446: <p>
447:
1.51 tb 448: <li id="p031_smtpd">
1.57 bentley 449: <strong>031: SECURITY FIX: October 1, 2015</strong>
1.40 deraadt 450: <i>All architectures</i><br>
451: Fix multiple reliability and security issues in smtpd:<br>
452: <ul>
453: <li>local and remote users could make smtpd crash or stop serving requests.
454: <li>a buffer overflow in the unprivileged, non-chrooted smtpd (lookup)
455: process could allow a local user to cause a crash or potentially
456: execute arbitrary code.
457: <li>a use-after-free in the unprivileged, non-chrooted smtpd (lookup)
458: process could allow a remote attacker to cause a crash or potentially
459: execute arbitrary code.
460: <li>hardlink and symlink attacks allowed a local user to unset chflags or
461: leak the first line of an arbitrary file.
462: </ul>
1.48 tb 463: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/031_smtpd.patch.sig">
1.40 deraadt 464: A source code patch exists which remedies this problem.</a>
465: <p>
466:
1.51 tb 467: <li id="p032_kevent">
1.57 bentley 468: <strong>032: RELIABILITY FIX: October 14, 2015</strong>
1.41 sthen 469: <i>All architectures</i><br>
470: A problem with timer kevents could result in a kernel hang (local denial
471: of service).<br>
1.48 tb 472: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/032_kevent.patch.sig">
1.41 sthen 473: A source code patch exists which remedies this problem.</a>
474: <p>
475:
1.51 tb 476: <li id="p033_obj2txt">
1.57 bentley 477: <strong>033: RELIABILITY FIX: October 15, 2015</strong>
1.42 tedu 478: <i>All architectures</i><br>
479: The OBJ_obj2txt function in libcrypto contains a one byte buffer overrun
480: and memory leak, as reported by Qualys Security.<br>
1.48 tb 481: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/033_obj2txt.patch.sig">
1.42 tedu 482: A source code patch exists which remedies this problem.</a>
483: <p>
484:
1.1 jsg 485: </ul>
486:
1.18 tedu 487: <hr>
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