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