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1.5 bentley 16: <h2 id=OpenBSD>
1.1 deraadt 17: <a href="index.html">
1.5 bentley 18: <i>Open</i><b>BSD</b></a>
19: 6.5 Errata
1.1 deraadt 20: </h2>
21: <hr>
22:
23: For errata on a certain release, click below:<br>
1.32 schwarze 24: <a href="errata20.html">2.0</a>,
1.1 deraadt 25: <a href="errata21.html">2.1</a>,
26: <a href="errata22.html">2.2</a>,
27: <a href="errata23.html">2.3</a>,
28: <a href="errata24.html">2.4</a>,
29: <a href="errata25.html">2.5</a>,
30: <a href="errata26.html">2.6</a>,
31: <a href="errata27.html">2.7</a>,
32: <a href="errata28.html">2.8</a>,
33: <a href="errata29.html">2.9</a>,
34: <a href="errata30.html">3.0</a>,
35: <a href="errata31.html">3.1</a>,
36: <a href="errata32.html">3.2</a>,
37: <a href="errata33.html">3.3</a>,
38: <a href="errata34.html">3.4</a>,
39: <a href="errata35.html">3.5</a>,
1.32 schwarze 40: <br>
1.1 deraadt 41: <a href="errata36.html">3.6</a>,
42: <a href="errata37.html">3.7</a>,
43: <a href="errata38.html">3.8</a>,
44: <a href="errata39.html">3.9</a>,
45: <a href="errata40.html">4.0</a>,
46: <a href="errata41.html">4.1</a>,
47: <a href="errata42.html">4.2</a>,
48: <a href="errata43.html">4.3</a>,
49: <a href="errata44.html">4.4</a>,
50: <a href="errata45.html">4.5</a>,
51: <a href="errata46.html">4.6</a>,
52: <a href="errata47.html">4.7</a>,
53: <a href="errata48.html">4.8</a>,
54: <a href="errata49.html">4.9</a>,
55: <a href="errata50.html">5.0</a>,
56: <a href="errata51.html">5.1</a>,
1.32 schwarze 57: <br>
1.1 deraadt 58: <a href="errata52.html">5.2</a>,
59: <a href="errata53.html">5.3</a>,
60: <a href="errata54.html">5.4</a>,
61: <a href="errata55.html">5.5</a>,
62: <a href="errata56.html">5.6</a>,
63: <a href="errata57.html">5.7</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>,
1.13 deraadt 70: <a href="errata64.html">6.4</a>,
1.33 deraadt 71: <a href="errata66.html">6.6</a>,
1.37 deraadt 72: <a href="errata67.html">6.7</a>,
1.38 deraadt 73: <a href="errata68.html">6.8</a>,
1.39 tj 74: <br>
1.40 deraadt 75: <a href="errata69.html">6.9</a>,
1.41 deraadt 76: <a href="errata70.html">7.0</a>,
1.42 ! deraadt 77: <a href="errata71.html">7.1</a>,
! 78: <a href="errata72.html">7.2</a>.
1.1 deraadt 79: <hr>
80:
81: <p>
82: Patches for the OpenBSD base system are distributed as unified diffs.
83: Each patch is cryptographically signed with the
84: <a href="https://man.openbsd.org/OpenBSD-6.5/signify.1">signify(1)</a> tool and contains
85: usage instructions.
86: All the following patches are also available in one
87: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5.tar.gz">tar.gz file</a>
88: for convenience.
89:
90: <p>
91: Alternatively, the <a href="https://man.openbsd.org/syspatch">syspatch(8)</a>
92: utility can be used to apply binary updates on the following architectures:
93: amd64, i386, arm64.
94:
95: <p>
96: Patches for supported releases are also incorporated into the
1.36 tj 97: <a href="stable.html">-stable branch</a>.
1.1 deraadt 98:
99: <hr>
100:
101: <ul>
102:
1.2 tj 103: <li id="p001_rip6cksum">
1.5 bentley 104: <strong>001: RELIABILITY FIX: May 3, 2019</strong>
1.2 tj 105: <i>All architectures</i>
106: <br>
107: If a userland program sets the IPv6 checksum offset on a raw socket,
108: an incoming packet could crash the kernel. ospf6d is such a program.
109: <br>
1.3 tj 110: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/001_rip6cksum.patch.sig">
1.2 tj 111: A source code patch exists which remedies this problem.</a>
112: <p>
1.1 deraadt 113:
1.4 tj 114: <li id="p002_srtp">
1.5 bentley 115: <strong>002: RELIABILITY FIX: May 16, 2019</strong>
1.4 tj 116: <i>All architectures</i>
117: <br>
118: LibreSSL servers did not provide an SRTP profile, so DTLS negotiation failed.
119: <br>
120: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/002_srtp.patch.sig">
121: A source code patch exists which remedies this problem.</a>
122: <p>
123:
1.6 tj 124: <li id="p003_mds">
125: <strong>003: SECURITY FIX: May 29, 2019</strong>
126: <i>amd64</i>
127: <br>
128: Intel CPUs have a cross privilege side-channel attack (MDS).
129: <br>
130: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/003_mds.patch.sig">
131: A source code patch exists which remedies this problem.</a>
132: <p>
133:
1.7 tj 134: <li id="p004_bgpd">
135: <strong>004: RELIABILITY FIX: June 10, 2019</strong>
136: <i>All architectures</i>
137: <br>
138: Several issues were corrected in bgpd: "network" statements with no fixed
139: prefix were incorrectly removed when configuration was reloaded, "export
140: default-route" did not work, and "network 0.0.0.0/0" could not be used
141: in some cases.
142: <br>
143: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/004_bgpd.patch.sig">
144: A source code patch exists which remedies these problems.</a>
145: <p>
146:
147: <li id="p005_libssl">
148: <strong>005: RELIABILITY FIX: June 10, 2019</strong>
149: <i>All architectures</i>
150: <br>
151: TLS handshakes fail if a client supporting TLS 1.3 tries to connect to
152: an OpenBSD server and sends a key share extension that does not include
153: X25519.
154: <br>
155: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/005_libssl.patch.sig">
156: A source code patch exists which remedies this problem.</a>
157: <p>
158:
1.8 tj 159: <li id="p006_tcpsack">
160: <strong>006: RELIABILITY FIX: July 25, 2019</strong>
161: <i>All architectures</i>
162: <br>
163: By creating long chains of TCP SACK holes, an attacker could possibly
164: slow down the system temporarily.
165: <br>
166: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig">
167: A source code patch exists which remedies this problem.</a>
168: <p>
169:
1.9 tj 170: <li id="p007_smtpd">
171: <strong>007: RELIABILITY FIX: August 2, 2019</strong>
172: <i>All architectures</i>
173: <br>
174: smtpd can crash on excessively large input, causing a denial of service.
175: <br>
176: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/007_smtpd.patch.sig">
177: A source code patch exists which remedies this problem.</a>
178: <p>
179:
1.10 tj 180: <li id="p008_swapgs">
181: <strong>008: SECURITY FIX: August 9, 2019</strong>
182: <i>amd64</i>
183: <br>
184: Intel CPUs have another cross privilege side-channel attack. (SWAPGS)
185: <br>
186: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/008_swapgs.patch.sig">
187: A source code patch exists which remedies this problem.</a>
188: <p>
189:
1.11 tj 190: <li id="p009_resume">
191: <strong>009: RELIABILITY FIX: September 2, 2019</strong>
192: <i>amd64</i>
193: <br>
194: Resume forgot to restore MSR/PAT configuration.
195: <br>
196: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/009_resume.patch.sig">
197: A source code patch exists which remedies this problem.</a>
198: <p>
199:
200: <li id="p010_frag6ecn">
201: <strong>010: RELIABILITY FIX: September 2, 2019</strong>
1.16 tb 202: <i>All architectures</i>
1.11 tj 203: <br>
204: When processing ECN bits on incoming IPv6 fragments, the kernel
205: could crash. Per default pf fragment reassemble prevents the crash.
206: <br>
207: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/010_frag6ecn.patch.sig">
208: A source code patch exists which remedies this problem.</a>
209: <p>
210:
1.12 tj 211: <li id="p011_expat">
212: <strong>011: SECURITY FIX: September 14, 2019</strong>
213: <i>All architectures</i>
214: <br>
215: Libexpat 2.2.6 was affected by the heap overflow CVE-2019-15903.
216: <br>
217: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/011_expat.patch.sig">
218: A source code patch exists which remedies this problem.</a>
219: <p>
220:
1.14 tj 221: <li id="p012_sysupgrade">
222: <strong>012: RELIABILITY FIX: October 3, 2019</strong>
223: <i>All architectures</i>
224: <br>
225: The sysupgrade utility can be used to upgrade the system to the next
226: release or to a new snapshot.
227: <br>
228: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/012_sysupgrade.patch.sig">
229: A source code patch exists which adds this utility.</a>
230: <p>
231:
1.15 tj 232: <li id="p013_unbound">
233: <strong>013: RELIABILITY FIX: October 5, 2019</strong>
234: <i>All architectures</i>
235: <br>
236: Specially crafted queries may crash unwind and unbound.
237: <br>
238: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/013_unbound.patch.sig">
239: A source code patch exists which remedies this problem.</a>
240: <p>
241:
242: <li id="p014_dhcpd">
243: <strong>014: SECURITY FIX: October 5, 2019</strong>
244: <i>All architectures</i>
245: <br>
246: dhcpd leaks 4 bytes of stack to the network.
247: <br>
248: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/014_dhcpd.patch.sig">
249: A source code patch exists which remedies this problem.</a>
250: <p>
251:
1.17 tj 252: <li id="p015_net80211">
253: <strong>015: RELIABILITY FIX: November 16, 2019</strong>
254: <i>All architectures</i>
255: <br>
256: The kernel could crash due to a NULL pointer dereference in net80211.
257: <br>
258: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/015_net80211.patch.sig">
259: A source code patch exists which remedies this problem.</a>
260: <p>
261:
262: <li id="p016_sysupgrade">
263: <strong>016: RELIABILITY FIX: November 16, 2019</strong>
264: <i>All architectures</i>
265: <br>
266: A new kernel may require newer firmware images when using sysupgrade.
267: <br>
268: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/016_sysupgrade.patch.sig">
269: A source code patch exists which remedies this problem.</a>
270: <p>
271:
272: <li id="p017_ifioctl">
273: <strong>017: SECURITY FIX: November 16, 2019</strong>
274: <i>All architectures</i>
275: <br>
276: A regular user could change some network interface parameters due
277: to missing checks in the ioctl(2) system call.
278: <br>
279: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/017_ifioctl.patch.sig">
280: A source code patch exists which remedies this problem.</a>
281: <p>
282:
1.18 tj 283: <li id="p018_inteldrm">
284: <strong>018: SECURITY FIX: November 22, 2019</strong>
285: <i>i386 and amd64</i>
286: <br>
287: A local user could cause the system to hang by reading specific
288: registers when Intel Gen8/Gen9 graphics hardware is in a low power state.
289: A local user could perform writes to memory that should be blocked with
290: Intel Gen9 graphics hardware.
291: <br>
292: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/018_inteldrm.patch.sig">
293: A source code patch exists which remedies this problem.</a>
294: <p>
295:
296: <li id="p019_mesa">
297: <strong>019: SECURITY FIX: November 22, 2019</strong>
298: <i>All architectures</i>
299: <br>
300: Shared memory regions used by some Mesa drivers had permissions which
301: allowed others to access that memory.
302: <br>
303: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/019_mesa.patch.sig">
304: A source code patch exists which remedies this problem.</a>
305: <p>
306:
1.19 tb 307: <li id="p020_mesaxlock">
308: <strong>020: SECURITY FIX: December 4, 2019</strong>
309: <i>All architectures</i>
310: <br>
311: Environment-provided paths are used for dlopen() in mesa, resulting in
312: escalation to the auth group in xlock(1).
313: <br>
314: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/020_mesaxlock.patch.sig">
315: A source code patch exists which remedies this problem.</a>
316: <p>
317:
318: <li id="p021_libcauth">
319: <strong>021: SECURITY FIX: December 4, 2019</strong>
320: <i>All architectures</i>
321: <br>
322: libc's authentication layer performed insufficient username validation.
323: <br>
324: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/021_libcauth.patch.sig">
325: A source code patch exists which remedies this problem.</a>
326: <p>
327:
328: <li id="p022_xenodm">
329: <strong>022: SECURITY FIX: December 4, 2019</strong>
330: <i>All architectures</i>
331: <br>
332: xenodm uses the libc authentication layer incorrectly.
333: <br>
334: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/022_xenodm.patch.sig">
335: A source code patch exists which remedies this problem.</a>
336: <p>
337:
1.20 tj 338: <li id="p023_suauth">
339: <strong>023: SECURITY FIX: December 8, 2019</strong>
340: <i>All architectures</i>
341: <br>
342: A user can log in with a different user's login class.
343: <br>
344: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/023_suauth.patch.sig">
345: A source code patch exists which remedies this problem.</a>
346: <p>
347:
1.21 tj 348: <li id="p024_ldso">
349: <strong>024: SECURITY FIX: December 11, 2019</strong>
350: <i>All architectures</i>
351: <br>
352: ld.so may fail to remove the LD_LIBRARY_PATH environment variable for
353: set-user-ID and set-group-ID executables in low memory conditions.
354: <br>
355: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/024_ldso.patch.sig">
356: A source code patch exists which remedies this problem.</a>
357: <p>
358:
1.22 tj 359: <li id="p025_eret">
360: <strong>025: SECURITY FIX: December 18, 2019</strong>
361: <i>arm64</i>
362: <br>
363: ARM64 CPUs speculatively execute instructions after ERET.
364: <br>
365: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/025_eret.patch.sig">
366: A source code patch exists which remedies this problem.</a>
367: <p>
368:
1.23 tj 369: <li id="p026_ftp">
370: <strong>026: SECURITY FIX: December 20, 2019</strong>
371: <i>All architectures</i>
372: <br>
373: ftp(1) will follow remote redirects to local files.
374: <br>
375: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/026_ftp.patch.sig">
376: A source code patch exists which remedies this problem.</a>
377: <p>
378:
379: <li id="p027_ripd">
380: <strong>027: SECURITY FIX: December 20, 2019</strong>
381: <i>All architectures</i>
382: <br>
383: ripd(8) fails to validate authentication lengths.
384: <br>
385: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/027_ripd.patch.sig">
386: A source code patch exists which remedies this problem.</a>
387: <p>
388:
1.24 tj 389: <li id="p028_inteldrmctx">
390: <strong>028: SECURITY FIX: January 17, 2020</strong>
391: <i>i386 and amd64</i>
392: <br>
393: Execution Unit state was not cleared on context switch with Intel Gen9
394: graphics hardware.
395: <br>
396: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/028_inteldrmctx.patch.sig">
397: A source code patch exists which remedies this problem.</a>
398: <p>
399:
1.25 tj 400: <li id="p029_smtpd_tls">
401: <strong>029: RELIABILITY FIX: January 30, 2020</strong>
402: <i>All architectures</i>
403: <br>
404: smtpd can crash on opportunistic TLS downgrade, causing a denial of service.
405: <br>
406: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/029_smtpd_tls.patch.sig">
407: A source code patch exists which remedies this problem.</a>
408: <p>
409:
410: <li id="p030_smtpd_exec">
411: <strong>030: SECURITY FIX: January 30, 2020</strong>
412: <i>All architectures</i>
413: <br>
414: An incorrect check allows an attacker to trick mbox delivery into executing
415: arbitrary commands as root and lmtp delivery into executing arbitrary commands
416: as an unprivileged user.
417: <br>
418: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/030_smtpd_exec.patch.sig">
419: A source code patch exists which remedies this problem.</a>
420: <p>
421:
1.26 tj 422: <li id="p031_smtpd_envelope">
423: <strong>031: SECURITY FIX: February 24, 2020</strong>
424: <i>All architectures</i>
425: <br>
426: An out of bounds read in smtpd allows an attacker to inject arbitrary
427: commands into the envelope file which are then executed as root.
428: Separately, missing privilege revocation in smtpctl allows arbitrary
429: commands to be run with the _smtpq group.
430: <br>
431: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/031_smtpd_envelope.patch.sig">
432: A source code patch exists which remedies this problem.</a>
433: <p>
1.27 tj 434:
435: <li id="p032_sysctl">
436: <strong>032: RELIABILITY FIX: March 10, 2020</strong>
437: <i>All architectures</i>
438: <br>
439: Missing input validation in sysctl(2) can be used to crash the kernel.
440: <br>
441: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/032_sysctl.patch.sig">
442: A source code patch exists which remedies this problem.</a>
443: <p>
444:
1.28 tj 445: <li id="p033_sosplice">
446: <strong>033: RELIABILITY FIX: March 13, 2020</strong>
447: <i>All architectures</i>
448: <br>
449: Local outbound UDP broadcast or multicast packets sent by a spliced
450: socket can crash the kernel.
451: <br>
452: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/033_sosplice.patch.sig">
453: A source code patch exists which remedies this problem.</a>
454: <p>
455:
1.29 tj 456: <li id="p034_dhcpd">
457: <strong>034: SECURITY FIX: April 7, 2020</strong>
458: <i>All architectures</i>
459: <br>
460: dhcpd could reference freed memory after releasing a lease with an
461: unusually long uid.
462: <br>
463: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/034_dhcpd.patch.sig">
464: A source code patch exists which remedies this problem.</a>
465: <p>
466:
1.30 tj 467: <li id="p035_drm">
468: <strong>035: SECURITY FIX: April 19, 2020</strong>
469: <i>i386, amd64, arm64, loongson, macppc, sparc64</i>
470: <br>
1.31 tj 471: There was an incorrect test for root in the DRM Linux compatibility code.
1.30 tj 472: <br>
473: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/035_drm.patch.sig">
474: A source code patch exists which remedies this problem.</a>
475: <p>
476:
1.34 tj 477: <li id="p036_ospfd_lsa">
478: <strong>036: RELIABILITY FIX: May 10, 2020</strong>
479: <i>All architectures</i>
480: <br>
481: ospfd could generate corrupt OSPF Router (Type 1) LSAs in certain situations.
482: <br>
483: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/036_ospfd_lsa.patch.sig">
484: A source code patch exists which remedies this problem.</a>
485: <p>
486:
1.35 tj 487: <li id="p037_wscons">
488: <strong>037: SECURITY FIX: May 13, 2020</strong>
489: <i>All architectures</i>
490: <br>
491: An out-of-bounds index access in wscons(4) can cause a kernel crash.
492: <br>
493: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/037_wscons.patch.sig">
494: A source code patch exists which remedies this problem.</a>
495: <p>
496:
1.1 deraadt 497: </ul>
498:
499: <hr>