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