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