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19 <i>Open</i><b>BSD</b></a>
20 5.7 Errata
21 </h2>
22 <hr>
24 For errata on a certain release, click below:<br>
25 <a href="errata20.html">2.0</a>,
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>,
41 <br>
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>,
58 <br>
59 <a href="errata52.html">5.2</a>,
60 <a href="errata53.html">5.3</a>,
61 <a href="errata54.html">5.4</a>,
62 <a href="errata55.html">5.5</a>,
63 <a href="errata56.html">5.6</a>,
64 <a href="errata58.html">5.8</a>,
65 <a href="errata59.html">5.9</a>,
66 <a href="errata60.html">6.0</a>,
67 <a href="errata61.html">6.1</a>,
68 <a href="errata62.html">6.2</a>,
69 <a href="errata63.html">6.3</a>,
70 <a href="errata64.html">6.4</a>,
71 <a href="errata65.html">6.5</a>,
72 <a href="errata66.html">6.6</a>,
73 <a href="errata67.html">6.7</a>,
74 <a href="errata68.html">6.8</a>,
75 <br>
76 <a href="errata69.html">6.9</a>,
77 <a href="errata70.html">7.0</a>,
78 <a href="errata71.html">7.1</a>,
79 <a href="errata72.html">7.2</a>,
80 <a href="errata73.html">7.3</a>,
81 <a href="errata74.html">7.4</a>,
82 <a href="errata75.html">7.5</a>.
83 <hr>
85 <p>
86 Patches for the OpenBSD base system are distributed as unified diffs.
87 Each patch is cryptographically signed with the
88 <a href="https://man.openbsd.org/OpenBSD-5.7/signify.1">signify(1)</a> tool and contains
89 usage instructions.
90 All the following patches are also available in one
91 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7.tar.gz">tar.gz file</a>
92 for convenience.
94 <p>
95 Patches for supported releases are also incorporated into the
96 <a href="stable.html">-stable branch</a>.
98 <hr>
100 <ul>
102 <li id="p001_sparc64_miniroot">
103 <strong>001: INSTALL ISSUE: May 1, 2015</strong>
104 &nbsp; <i>sparc64</i><br>
105 The "miniroot" install method is broken (related to the addition of
106 softraid support). This method is used by the official CD 3 as
107 well, so it fails to boot on sparc64 machines.
108 <br>
109 No patch is available for obvious reasons, so use a different install method.
110 <p>
112 <li id="p002_libxfont">
113 <strong>002: SECURITY FIX: March 18, 2015</strong>
114 &nbsp; <i>All architectures</i><br>
115 Buffer overflows in libXfont
116 <br>
117 For more information, see the
118 <a href="http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/">X.org advisory</a>.
119 <br>
120 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/002_libxfont.patch.sig">
121 A source code patch exists which remedies this problem.</a>
122 <br>Note that the instructions should read <code>cd /usr/xenocara/lib/libXfont</code>.
123 <p>
125 <li id="p003_openssl">
126 <strong>003: SECURITY FIX: March 19, 2015</strong>
127 &nbsp; <i>All architectures</i><br>
128 Fix several crash causing defects from OpenSSL.<br>
129 These include:<br>
130 CVE-2015-0209 - Use After Free following d2i_ECPrivatekey error<br>
131 CVE-2015-0286 - Segmentation fault in ASN1_TYPE_cmp<br>
132 CVE-2015-0287 - ASN.1 structure reuse memory corruption<br>
133 CVE-2015-0288 - X509_to_X509_REQ NULL pointer deref<br>
134 CVE-2015-0289 - PKCS7 NULL pointer dereferences<br>
135 <br>
136 Several other issues did not apply or were already fixed.<br>
137 For more information, see the
138 <a href="https://www.openssl.org/news/secadv_20150319.txt">OpenSSL advisory</a>.
139 <br>
140 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/003_openssl.patch.sig">
141 A source code patch exists which remedies this problem.</a>
142 <p>
144 <li id="p004_smtpd">
145 <strong>004: RELIABILITY FIX: April 17, 2015</strong>
146 &nbsp; <i>All architectures</i><br>
147 Fix a logic error in smtpd handling of SNI.
148 This could allow a remote user to crash the server or provoke a disconnect of other sessions.
149 <br>
150 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/004_smtpd.patch.sig">
151 A source code patch exists which remedies this problem.</a>
152 <p>
154 <li id="p005_httpd">
155 <strong>005: RELIABILITY FIX: April 30, 2015</strong>
156 &nbsp; <i>All architectures</i><br>
157 A remote user can crash httpd by forcing the daemon to log to a file
158 before the logging system was initialized.
159 <br>
160 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/005_httpd.patch.sig">
161 A source code patch exists which remedies this problem.</a>
162 <p>
164 <li id="p006_elf">
165 <strong>006: SECURITY FIX: April 30, 2015</strong>
166 &nbsp; <i>All architectures</i><br>
167 Malformed binaries could trigger kernel panics or view kernel memory.
168 <br>
169 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/006_elf.patch.sig">
170 A source code patch exists which remedies this problem.</a>
171 <p>
173 <li id="p007_tar">
174 <strong>007: SECURITY FIX: April 30, 2015</strong>
175 &nbsp; <i>All architectures</i><br>
176 Multiple issues in tar/pax/cpio:
177 <ul>
178 <li>extracting a malicious archive could create files outside of
179 the current directory without using pre-existing symlinks to 'escape',
180 and could change the timestamps and modes on preexisting files
181 <li>tar without -P would permit extraction of paths with ".." components
182 <li>there was a buffer overflow in the handling of pax extension headers
183 </ul>
184 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/007_tar.patch.sig">
185 A source code patch exists which remedies this problem.</a>
186 <p>
188 <li id="p008_smtpd">
189 <strong>008: RELIABILITY FIX: June 11, 2015</strong>
190 &nbsp; <i>All architectures</i><br>
191 Fix multiple reliability issues in smtpd:
192 <ul>
193 <li>a local user can cause smtpd to fail by writing an invalid imsg to control socket.
194 <li>a local user can prevent smtpd from serving new requests by exhausting descriptors.
195 </ul>
196 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/008_smtpd.patch.sig">
197 A source code patch exists which remedies this problem.</a>
198 <p>
200 <li id="p009_openssl">
201 <strong>009: SECURITY FIX: June 11, 2015</strong>
202 &nbsp; <i>All architectures</i><br>
203 Fix several defects from OpenSSL:
204 <ul>
205 <li>CVE-2015-1788 - Malformed ECParameters causes infinite loop
206 <li>CVE-2015-1789 - Exploitable out-of-bounds read in X509_cmp_time
207 <li>CVE-2015-1792 - CMS verify infinite loop with unknown hash function
208 </ul>
209 Note that CMS was already disabled in LibreSSL.
210 Several other issues did not apply or were already fixed and one is under review.<br>
211 For more information, see the
212 <a href="https://www.openssl.org/news/secadv_20150611.txt">OpenSSL advisory</a>.
213 <br>
214 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/009_openssl.patch.sig">
215 A source code patch exists which remedies this problem.</a>
216 <p>
218 <li id="p010_tcp">
219 <strong>010: SECURITY FIX: July 14, 2015</strong>
220 &nbsp; <i>All architectures</i><br>
221 A TCP socket can become confused and not properly cleanup resources.
222 <br>
223 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/010_tcp_persist.patch.sig">
224 A source code patch exists which remedies this problem.</a>
225 <p>
227 <li id="p011_execve">
228 <strong>011: RELIABILITY FIX: July 26, 2015</strong>
229 &nbsp; <i>All architectures</i><br>
230 A kernel memory leak could be triggered by an unprivileged user in
231 a failure case when using execve under systrace.
232 <br>
233 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/011_execve.patch.sig">
234 A source code patch exists which remedies this problem.</a>
235 <p>
237 <li id="p012_patch">
238 <strong>012: SECURITY FIX: July 26, 2015</strong>
239 &nbsp; <i>All architectures</i><br>
240 The patch utility could be made to invoke arbitrary commands via
241 the obsolete RCS support when processing a crafted input file.
242 This patch deletes the RCS support.
243 <br>
244 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/012_patch.patch.sig">
245 A source code patch exists which remedies this problem.</a>
246 <p>
248 <li id="p013_patch">
249 <strong>013: SECURITY FIX: July 30, 2015</strong>
250 &nbsp; <i>All architectures</i><br>
251 The patch utility could become desyncronized processing ed(1)-style diffs.
252 <br>
253 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/013_patch.patch.sig">
254 A source code patch exists which remedies this problem.</a>
255 <p>
257 <li id="p014_sshd">
258 <strong>014: SECURITY FIX: August 16, 2015</strong>
259 &nbsp; <i>All architectures</i><br>
260 A change to sshd resulted in incorrect permissions being applied to pseudo
261 terminal devices, allowing local users to write to (but not read from) them.
262 <br>
263 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/014_sshd.patch.sig">
264 A source code patch exists which remedies this problem.</a>
265 <p>
267 <li id="p015_relayd">
268 <strong>015: RELIABILITY FIX: September 28, 2015</strong>
269 &nbsp; <i>All architectures</i><br>
270 Various problems were identified in relayd and merged back from
271 current to 5.7 in this maintenance update.
272 <br>
273 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/015_relayd.patch.sig">
274 A source code patch exists which remedies this problem.</a>
275 <p>
277 <li id="p016_uvm">
278 <strong>016: RELIABILITY FIX: September 28, 2015</strong>
279 &nbsp; <i>All architectures</i><br>
280 An incorrect operation in uvm could result in system panics.
281 <br>
282 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/016_uvm.patch.sig">
283 A source code patch exists which remedies this problem.</a>
284 <p>
286 <li id="p017_smtpd">
287 <strong>017: SECURITY FIX: October 1, 2015</strong>
288 &nbsp; <i>All architectures</i><br>
289 Fix multiple reliability and security issues in smtpd:<br>
290 <ul>
291 <li>local and remote users could make smtpd crash or stop serving requests.
292 <li>a buffer overflow in the unprivileged, non-chrooted smtpd (lookup)
293 process could allow a local user to cause a crash or potentially
294 execute arbitrary code.
295 <li>a use-after-free in the unprivileged, non-chrooted smtpd (lookup)
296 process could allow a remote attacker to cause a crash or potentially
297 execute arbitrary code.
298 <li>hardlink and symlink attacks allowed a local user to unset chflags or
299 leak the first line of an arbitrary file.
300 </ul>
301 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/017_smtpd.patch.sig">
302 A source code patch exists which remedies this problem.</a>
303 <p>
305 <li id="p018_kevent">
306 <strong>018: RELIABILITY FIX: October 14, 2015</strong>
307 &nbsp; <i>All architectures</i><br>
308 A problem with timer kevents could result in a kernel hang (local denial
309 of service).<br>
310 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/018_kevent.patch.sig">
311 A source code patch exists which remedies this problem.</a>
312 <p>
314 <li id="p019_obj2txt">
315 <strong>019: RELIABILITY FIX: October 15, 2015</strong>
316 &nbsp; <i>All architectures</i><br>
317 The OBJ_obj2txt function in libcrypto contains a one byte buffer overrun
318 and memory leak, as reported by Qualys Security.<br>
319 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/019_obj2txt.patch.sig">
320 A source code patch exists which remedies this problem.</a>
321 <p>
323 <li id="p020_rsn">
324 <strong>020: RELIABILITY FIX: November 9, 2015</strong>
325 &nbsp; <i>All architectures</i><br>
326 Insufficient validation of RSN element group cipher values in 802.11
327 beacons and probe responses could result in system panics.<br>
328 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/020_rsn.patch.sig">
329 A source code patch exists which remedies this problem.</a>
330 <p>
332 <li id="p021_clientcert">
333 <strong>021: RELIABILITY FIX: Dec 3, 2015</strong>
334 &nbsp; <i>All architectures</i><br>
335 A NULL pointer deference could be triggered by a crafted certificate sent to
336 services configured to verify client certificates on TLS/SSL connections.<br>
337 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/021_clientcert.patch.sig">
338 A source code patch exists which remedies this problem.</a>
339 <p>
341 <li id="p022_sshd">
342 <strong>022: SECURITY FIX: January 14, 2016</strong>
343 &nbsp; <i>All architectures</i><br>
344 Experimental roaming code in the ssh client could be tricked by a hostile sshd
345 server, potentially leaking key material. CVE-2016-0777 and CVE-0216-0778.
346 <br>
347 Prevent this problem immediately by adding the line "UseRoaming no" to
348 <b>/etc/ssh/ssh_config</b>.
349 <br>
350 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/022_ssh.patch.sig">
351 A source code patch exists which remedies this problem.</a>
352 <p>
354 <li id="p023_sshd">
355 <strong>023: SECURITY FIX: March 10, 2016</strong>
356 &nbsp; <i>All architectures</i><br>
357 <a href="https://www.openssh.com/txt/x11fwd.adv">
358 Lack of credential sanitization allows injection of commands to xauth(1).</a>
359 <br>
360 Prevent this problem immediately by not using the "X11Forwarding" feature
361 (which is disabled by default)
362 <br>
363 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/023_sshd.patch.sig">
364 A source code patch exists which remedies this problem.</a>
365 <p>
367 <li id="p024_in6bind">
368 <strong>024: SECURITY FIX: March 16, 2016</strong>
369 &nbsp; <i>All architectures</i><br>
370 Insufficient checks in IPv6 socket binding and UDP IPv6 option
371 processing allow a local user to send UDP packets with a source
372 (IPv6 address + port) already reserved by another user.
373 <br>
374 <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/5.7/common/024_in6bind.patch.sig">
375 A source code patch exists which remedies this problem.</a>
376 <p>
378 </ul>
380 <hr>