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