Annotation of www/errata56.html, Revision 1.68
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3: <meta charset=utf-8>
4:
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>,
1.67 tj 79: <a href="errata72.html">7.2</a>,
1.68 ! tj 80: <a href="errata73.html">7.3</a>,
! 81: <a href="errata74.html">7.4</a>.
1.1 jsg 82: <hr>
83:
84: <p>
1.49 tj 85: Patches for the OpenBSD base system are distributed as unified diffs.
86: Each patch is cryptographically signed with the
1.52 tb 87: <a href="https://man.openbsd.org/OpenBSD-5.6/signify.1">signify(1)</a> tool and contains
1.49 tj 88: usage instructions.
89: All the following patches are also available in one
90: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6.tar.gz">tar.gz file</a>
91: for convenience.
1.1 jsg 92:
93: <p>
1.49 tj 94: Patches for supported releases are also incorporated into the
1.50 tj 95: <a href="stable.html">-stable branch</a>.
1.1 jsg 96:
97: <hr>
98:
99: <ul>
100:
1.51 tb 101: <li id="p001_rxr">
1.57 bentley 102: <strong>001: RELIABILITY FIX: September 5, 2014</strong>
1.1 jsg 103: <i>All architectures</i><br>
104: Incorrect RX ring computation leads to panics under load with bge(4), em(4) and ix(4).
105: <br>
1.48 tb 106: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/001_rxr.patch.sig">
1.2 stsp 107: A source code patch exists which remedies this problem.</a>
108: <p>
109:
1.51 tb 110: <li id="p002_nd6">
1.57 bentley 111: <strong>002: RELIABILITY FIX: October 1, 2014</strong>
1.2 stsp 112: <i>All architectures</i><br>
113: If IPv6 autoconf is active on an interface and the autoconfprivacy extension is used,
114: redundant addresses are added whenever an autoconfprivacy address expires.
115: The autoconfprivacy extension is used by default and can be disabled with ifconfig(8)
116: as a workaround:
117: <pre>
118: # ifconfig em0 -autoconfprivacy
119: </pre>
1.48 tb 120: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/002_nd6.patch.sig">
1.2 stsp 121: A source code patch exists which remedies this problem.</a>
122: <p>
123:
1.51 tb 124: <li id="p003_nginx">
1.57 bentley 125: <strong>003: SECURITY FIX: October 1, 2014</strong>
1.2 stsp 126: <i>All architectures</i><br>
127: nginx can reuse cached SSL sessions in unrelated contexts, allowing virtual
128: host confusion attacks in some configurations.
129: This issue was assigned CVE-2014-3616.
130: <br>
1.48 tb 131: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/003_nginx.patch.sig">
1.1 jsg 132: A source code patch exists which remedies this problem.</a>
133: <p>
134:
1.51 tb 135: <li id="p004_kernexec">
1.57 bentley 136: <strong>004: RELIABILITY FIX: October 20, 2014</strong>
1.4 tedu 137: <i>All architectures</i><br>
138: Executable headers with an unaligned address will trigger a kernel panic.
139: <br>
1.48 tb 140: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/004_kernexec.patch.sig">
1.4 tedu 141: A source code patch exists which remedies this problem.</a>
142: <p>
143:
1.51 tb 144: <li id="p005_nosslv3">
1.57 bentley 145: <strong>005: SECURITY FIX: October 20, 2014</strong>
1.5 tedu 146: <i>All architectures</i><br>
147: This patch disables the SSLv3 protocol by default.
148: <p>
149: <i>
150: Applications depending on SSLv3 may need to be recompiled with
1.51 tb 151: </i>
1.5 tedu 152: <pre> SSL_CTX_clear_option(ctx, SSL_OP_NO_SSLv3);</pre>
1.51 tb 153: <i>
1.5 tedu 154: but we recommend against the continued use of this obsolete protocol.
155: </i>
156: <p>
1.48 tb 157: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/005_nosslv3.patch.sig">
1.5 tedu 158: A source code patch exists which remedies this problem.</a>
159: <p>
160:
1.51 tb 161: <li id="p006_relayd">
1.57 bentley 162: <strong>006: RELIABILITY FIX: November 17, 2014</strong>
1.6 florian 163: <i>All architectures</i><br>
164: Certain http requests can crash relayd.
165: <br>
1.48 tb 166: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/006_relayd.patch.sig">
1.6 florian 167: A source code patch exists which remedies this problem.</a>
168: <p>
169:
1.51 tb 170: <li id="p007_pfctl">
1.57 bentley 171: <strong>007: RELIABILITY FIX: November 17, 2014</strong>
1.7 sthen 172: <i>All architectures</i><br>
1.8 tedu 173: A PF rule using an IPv4 address
174: followed by an IPv6 address and then a dynamic address, e.g. "pass
175: from {192.0.2.1 2001:db8::1} to (pppoe0)", will have an incorrect /32
176: mask applied to the dynamic address.
1.7 sthen 177: <br>
1.48 tb 178: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/007_pfctl.patch.sig">
1.8 tedu 179: A source code patch exists which remedies this problem.</a>
180: <p>
181:
1.51 tb 182: <li id="p008_asr">
1.57 bentley 183: <strong>008: RELIABILITY FIX: November 17, 2014</strong>
1.8 tedu 184: <i>All architectures</i><br>
185: Querying an invalid hostname with gethostbyname(3) could cause a NULL deref.
186: <br>
1.48 tb 187: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/008_asr.patch.sig">
1.7 sthen 188: A source code patch exists which remedies this problem.</a>
189: <p>
190:
1.51 tb 191: <li id="p009_httpd">
1.57 bentley 192: <strong>009: RELIABILITY FIX: November 18, 2014</strong>
1.9 reyk 193: <i>All architectures</i><br>
194: httpd was developed very rapidly in the weeks before 5.6 release, and
195: it has a few flaws. It would be nice to get these flaws fully
196: remediated before the next release, and that requires the community to
197: want to use it. Therefore here is a "jumbo" patch that brings in the
198: most important fixes.
199: <br>
1.48 tb 200: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/009_httpd.patch.sig">
1.9 reyk 201: A source code patch exists which remedies this problem.</a>
1.19 tedu 202: <br>
203: <i>Unfortunately the source tree found on the CD set contains a slightly different
204: checkout, from just before the release was finished and is missing a few httpd
205: commits. Therefore, the patch above will not apply correctly. Users are encouraged
206: to use cvs to get the latest httpd sources if interested.</i>
1.9 reyk 207: <p>
208:
1.51 tb 209: <li id="p010_pipex">
1.57 bentley 210: <strong>010: RELIABILITY FIX: December 5, 2014</strong>
1.10 tedu 211: <i>All architectures</i><br>
212: Several bugs were fixed that allowed a crash from remote when an active pipex
213: session exists.
214: <br>
1.48 tb 215: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/010_pipex.patch.sig">
1.10 tedu 216: A source code patch exists which remedies this problem.</a>
217: <p>
218:
1.51 tb 219: <li id="p011_pppoe">
1.57 bentley 220: <strong>011: RELIABILITY FIX: December 5, 2014</strong>
1.10 tedu 221: <i>All architectures</i><br>
222: An incorrect memcpy call would result in corrupted MAC addresses when
223: using PPPOE.
224: <br>
1.48 tb 225: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/011_pppoe.patch.sig">
1.10 tedu 226: A source code patch exists which remedies this problem.</a>
227: <p>
228:
1.51 tb 229: <li id="p012_unbound">
1.57 bentley 230: <strong>012: RELIABILITY FIX: December 9, 2014</strong>
1.12 tedu 231: <i>All architectures</i><br>
1.13 tedu 232: Fix a denial of service where a malicious authority could make the resolver chase an
233: endless series of delegations. (CVE-2014-8602)
1.12 tedu 234: <br>
1.48 tb 235: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/012_unbound.patch.sig">
1.12 tedu 236: A source code patch exists which remedies this problem.</a>
237: <p>
238:
1.51 tb 239: <li id="p013_virtio">
1.57 bentley 240: <strong>013: RELIABILITY FIX: December 9, 2014</strong>
1.12 tedu 241: <i>All architectures</i><br>
1.13 tedu 242: Missing memory barriers in virtio(4) can lead to hangs with virtio devices,
243: like vio(4) and vioblk(4).
1.12 tedu 244: <br>
1.48 tb 245: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/013_virtio.patch.sig">
1.12 tedu 246: A source code patch exists which remedies this problem.</a>
247: <p>
248:
1.51 tb 249: <li id="p014_xserver">
1.57 bentley 250: <strong>014: SECURITY FIX: December 9, 2014</strong>
1.12 tedu 251: <i>All architectures</i><br>
252: One year after Ilja van Sprundel discovered and reported a large number
253: of issues in the way the X server code base handles requests from X clients,
254: they have been fixed.
255: <br>
256: <a href="http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/">X Advisory</a>
257: <br>
1.48 tb 258: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/014_xserver.patch.sig">
1.12 tedu 259: A source code patch exists which remedies this problem.</a>
260: <p>
261:
1.51 tb 262: <li id="p015_libevent">
1.57 bentley 263: <strong>015: SECURITY FIX: January 13, 2015</strong>
1.15 bluhm 264: <i>All architectures</i><br>
265: Fix CVE-2014-6272 in libevent 1.4 event buffer handling. OpenBSD
266: base uses it for the programs: cu tmux ftp-proxy httpd ldapd relayd
267: tftp-proxy tftpd
268: <br>
269: <a href="http://www.wangafu.net/~nickm/volatile/advisory.txt.asc">Libevent Advisory</a>
270: <br>
1.48 tb 271: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/015_libevent.patch.sig">
1.15 bluhm 272: A source code patch exists which remedies this problem.</a>
273: <p>
1.10 tedu 274:
1.51 tb 275: <li id="p016_xserver">
1.57 bentley 276: <strong>016: SECURITY FIX: March 3, 2015</strong>
1.17 tedu 277: <i>All architectures</i><br>
278: Information leak in the XkbSetGeometry request of X servers.
279: <br>
280: For more information, see the
281: <a href="http://www.x.org/wiki/Development/Security/Advisory-2015-02-10/">X.org advisory</a>.
282: <br>
1.48 tb 283: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/016_xserver.patch.sig">
1.17 tedu 284: A source code patch exists which remedies this problem.</a>
285: <p>
286:
1.51 tb 287: <li id="p017_openssl">
1.57 bentley 288: <strong>017: SECURITY FIX: March 13, 2015</strong>
1.20 tedu 289: <i>All architectures</i><br>
290: Don't permit TLS client connections to be downgraded to weak keys.
291: <br>
1.48 tb 292: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/017_openssl.patch.sig">
1.20 tedu 293: A source code patch exists which remedies this problem.</a>
294: <p>
295:
1.51 tb 296: <li id="p018_freetype">
1.57 bentley 297: <strong>018: SECURITY FIX: March 13, 2015</strong>
1.20 tedu 298: <i>All architectures</i><br>
299: Another fix for buffer overflows in malformed fonts.
300: <br>
1.48 tb 301: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/018_freetype.patch.sig">
1.20 tedu 302: A source code patch exists which remedies this problem.</a>
303: <p>
304:
1.51 tb 305: <li id="p019_libxfont">
1.57 bentley 306: <strong>019: SECURITY FIX: March 18, 2015</strong>
1.22 tedu 307: <i>All architectures</i><br>
308: Buffer overflows in libXfont
309: <br>
310: For more information, see the
311: <a href="http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/">X.org advisory</a>.
312: <br>
1.48 tb 313: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/019_libxfont.patch.sig">
1.23 tedu 314: A source code patch exists which remedies this problem.</a>
1.24 tedu 315: <br>Note that the instructions should read <code>cd /usr/xenocara/lib/libXfont</code>.
1.23 tedu 316: <p>
317:
1.51 tb 318: <li id="p020_openssl">
1.57 bentley 319: <strong>020: SECURITY FIX: March 19, 2015</strong>
1.23 tedu 320: <i>All architectures</i><br>
321: Fix several crash causing defects from OpenSSL.<br>
322: These include:<br>
323: CVE-2015-0209 - Use After Free following d2i_ECPrivatekey error<br>
324: CVE-2015-0286 - Segmentation fault in ASN1_TYPE_cmp<br>
325: CVE-2015-0287 - ASN.1 structure reuse memory corruption<br>
326: CVE-2015-0288 - X509_to_X509_REQ NULL pointer deref<br>
327: CVE-2015-0289 - PKCS7 NULL pointer dereferences<br>
328: <br>
329: Several other issues did not apply or were already fixed.<br>
330: For more information, see the
331: <a href="https://www.openssl.org/news/secadv_20150319.txt">OpenSSL advisory</a>.
332: <br>
1.48 tb 333: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/020_openssl.patch.sig">
1.22 tedu 334: A source code patch exists which remedies this problem.</a>
335: <p>
336:
1.51 tb 337: <li id="p021_smtpd">
1.57 bentley 338: <strong>021: RELIABILITY FIX: April 17, 2015</strong>
1.25 gilles 339: <i>All architectures</i><br>
340: Fix a logic error in smtpd handling of SNI.
341: This could allow a remote user to crash the server or provoke a disconnect of other sessions.
342: <br>
1.48 tb 343: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/021_smtpd.patch.sig">
1.28 deraadt 344: A source code patch exists which remedies this problem.</a>
1.25 gilles 345: <p>
346:
1.51 tb 347: <li id="p022_httpd">
1.57 bentley 348: <strong>022: RELIABILITY FIX: April 30, 2015</strong>
1.26 florian 349: <i>All architectures</i><br>
350: A remote user can crash httpd by forcing the daemon to log to a file
351: before the logging system was initialized.
352: <br>
1.48 tb 353: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/022_httpd.patch.sig">
1.28 deraadt 354: A source code patch exists which remedies this problem.</a>
1.26 florian 355: <p>
356:
1.51 tb 357: <li id="p023_elf">
1.57 bentley 358: <strong>023: SECURITY FIX: April 30, 2015</strong>
1.27 guenther 359: <i>All architectures</i><br>
360: Malformed binaries could trigger kernel panics or view kernel memory.
361: <br>
1.48 tb 362: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/023_elf.patch.sig">
1.28 deraadt 363: A source code patch exists which remedies this problem.</a>
1.27 guenther 364: <p>
365:
1.51 tb 366: <li id="p024_tar">
1.57 bentley 367: <strong>024: SECURITY FIX: April 30, 2015</strong>
1.27 guenther 368: <i>All architectures</i><br>
369: Multiple issues in tar/pax/cpio:
370: <ul>
371: <li>extracting a malicious archive could create files outside of
372: the current directory without using pre-existing symlinks to 'escape',
373: and could change the timestamps and modes on preexisting files
374: <li>tar without -P would permit extraction of paths with ".." components
375: <li>there was a buffer overflow in the handling of pax extension headers
376: </ul>
1.48 tb 377: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/024_tar.patch.sig">
1.31 deraadt 378: A source code patch exists which remedies this problem.</a>
379: <p>
380:
1.51 tb 381: <li id="p025_smtpd">
1.57 bentley 382: <strong>025: RELIABILITY FIX: June 11, 2015</strong>
1.31 deraadt 383: <i>All architectures</i><br>
384: Fix multiple reliability issues in smtpd:
385: <ul>
386: <li>a local user can cause smtpd to fail by writing an invalid imsg to control socket.
387: <li>a local user can prevent smtpd from serving new requests by exhausting descriptors.
388: </ul>
1.48 tb 389: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/025_smtpd.patch.sig">
1.31 deraadt 390: A source code patch exists which remedies this problem.</a>
391: <p>
392:
1.51 tb 393: <li id="p026_openssl">
1.57 bentley 394: <strong>026: SECURITY FIX: June 11, 2015</strong>
1.31 deraadt 395: <i>All architectures</i><br>
396: Fix several defects from OpenSSL:
397: <ul>
398: <li>CVE-2015-1788 - Malformed ECParameters causes infinite loop
399: <li>CVE-2015-1789 - Exploitable out-of-bounds read in X509_cmp_time
400: <li>CVE-2015-1792 - CMS verify infinite loop with unknown hash function
401: </ul>
1.32 doug 402: Note that CMS was already disabled in LibreSSL.
403: Several other issues did not apply or were already fixed and one is under review.<br>
404: For more information, see the
405: <a href="https://www.openssl.org/news/secadv_20150611.txt">OpenSSL advisory</a>.
406: <br>
1.48 tb 407: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/026_openssl.patch.sig">
1.28 deraadt 408: A source code patch exists which remedies this problem.</a>
1.27 guenther 409: <p>
410:
1.51 tb 411: <li id="p027_tcp">
1.57 bentley 412: <strong>027: SECURITY FIX: July 14, 2015</strong>
1.34 deraadt 413: <i>All architectures</i><br>
414: A TCP socket can become confused and not properly cleanup resources.
415: <br>
1.48 tb 416: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/027_tcp_persist.patch.sig">
1.37 deraadt 417: A source code patch exists which remedies this problem.</a>
418: <p>
419:
1.51 tb 420: <li id="p028_execve">
1.57 bentley 421: <strong>028: RELIABILITY FIX: July 26, 2015</strong>
1.37 deraadt 422: <i>All architectures</i><br>
423: A kernel memory leak could be triggered by an unprivileged user in
424: a failure case when using execve under systrace.
425: <br>
1.48 tb 426: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/028_execve.patch.sig">
1.37 deraadt 427: A source code patch exists which remedies this problem.</a>
428: <p>
429:
1.51 tb 430: <li id="p029_patch">
1.57 bentley 431: <strong>029: SECURITY FIX: July 26, 2015</strong>
1.37 deraadt 432: <i>All architectures</i><br>
433: The patch utility could be made to invoke arbitrary commands via
434: the obsolete SCCS and RCS support when processing a crafted input file.
435: This patch deletes the SCCS and RCS support.
436: <br>
1.48 tb 437: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/029_patch.patch.sig">
1.34 deraadt 438: A source code patch exists which remedies this problem.</a>
439: <p>
440:
1.51 tb 441: <li id="p030_patch">
1.57 bentley 442: <strong>030: SECURITY FIX: July 30, 2015</strong>
1.38 deraadt 443: <i>All architectures</i><br>
444: The patch utility could become desyncronized processing ed(1)-style diffs.
445: <br>
1.48 tb 446: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/030_patch.patch.sig">
1.38 deraadt 447: A source code patch exists which remedies this problem.</a>
448: <p>
449:
1.51 tb 450: <li id="p031_smtpd">
1.57 bentley 451: <strong>031: SECURITY FIX: October 1, 2015</strong>
1.40 deraadt 452: <i>All architectures</i><br>
453: Fix multiple reliability and security issues in smtpd:<br>
454: <ul>
455: <li>local and remote users could make smtpd crash or stop serving requests.
456: <li>a buffer overflow in the unprivileged, non-chrooted smtpd (lookup)
457: process could allow a local user to cause a crash or potentially
458: execute arbitrary code.
459: <li>a use-after-free in the unprivileged, non-chrooted smtpd (lookup)
460: process could allow a remote attacker to cause a crash or potentially
461: execute arbitrary code.
462: <li>hardlink and symlink attacks allowed a local user to unset chflags or
463: leak the first line of an arbitrary file.
464: </ul>
1.48 tb 465: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/031_smtpd.patch.sig">
1.40 deraadt 466: A source code patch exists which remedies this problem.</a>
467: <p>
468:
1.51 tb 469: <li id="p032_kevent">
1.57 bentley 470: <strong>032: RELIABILITY FIX: October 14, 2015</strong>
1.41 sthen 471: <i>All architectures</i><br>
472: A problem with timer kevents could result in a kernel hang (local denial
473: of service).<br>
1.48 tb 474: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/032_kevent.patch.sig">
1.41 sthen 475: A source code patch exists which remedies this problem.</a>
476: <p>
477:
1.51 tb 478: <li id="p033_obj2txt">
1.57 bentley 479: <strong>033: RELIABILITY FIX: October 15, 2015</strong>
1.42 tedu 480: <i>All architectures</i><br>
481: The OBJ_obj2txt function in libcrypto contains a one byte buffer overrun
482: and memory leak, as reported by Qualys Security.<br>
1.48 tb 483: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.6/common/033_obj2txt.patch.sig">
1.42 tedu 484: A source code patch exists which remedies this problem.</a>
485: <p>
486:
1.1 jsg 487: </ul>
488:
1.18 tedu 489: <hr>
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