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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>,
1.43 tj 78: <a href="errata72.html">7.2</a>,
1.44 tj 79: <a href="errata73.html">7.3</a>,
1.45 ! tj 80: <a href="errata74.html">7.4</a>,
! 81: <a href="errata75.html">7.5</a>.
1.1 deraadt 82: <hr>
83:
84: <p>
85: Patches for the OpenBSD base system are distributed as unified diffs.
86: Each patch is cryptographically signed with the
87: <a href="https://man.openbsd.org/OpenBSD-6.5/signify.1">signify(1)</a> tool and contains
88: usage instructions.
89: All the following patches are also available in one
90: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5.tar.gz">tar.gz file</a>
91: for convenience.
92:
93: <p>
94: Alternatively, the <a href="https://man.openbsd.org/syspatch">syspatch(8)</a>
95: utility can be used to apply binary updates on the following architectures:
96: amd64, i386, arm64.
97:
98: <p>
99: Patches for supported releases are also incorporated into the
1.36 tj 100: <a href="stable.html">-stable branch</a>.
1.1 deraadt 101:
102: <hr>
103:
104: <ul>
105:
1.2 tj 106: <li id="p001_rip6cksum">
1.5 bentley 107: <strong>001: RELIABILITY FIX: May 3, 2019</strong>
1.2 tj 108: <i>All architectures</i>
109: <br>
110: If a userland program sets the IPv6 checksum offset on a raw socket,
111: an incoming packet could crash the kernel. ospf6d is such a program.
112: <br>
1.3 tj 113: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/001_rip6cksum.patch.sig">
1.2 tj 114: A source code patch exists which remedies this problem.</a>
115: <p>
1.1 deraadt 116:
1.4 tj 117: <li id="p002_srtp">
1.5 bentley 118: <strong>002: RELIABILITY FIX: May 16, 2019</strong>
1.4 tj 119: <i>All architectures</i>
120: <br>
121: LibreSSL servers did not provide an SRTP profile, so DTLS negotiation failed.
122: <br>
123: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/002_srtp.patch.sig">
124: A source code patch exists which remedies this problem.</a>
125: <p>
126:
1.6 tj 127: <li id="p003_mds">
128: <strong>003: SECURITY FIX: May 29, 2019</strong>
129: <i>amd64</i>
130: <br>
131: Intel CPUs have a cross privilege side-channel attack (MDS).
132: <br>
133: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/003_mds.patch.sig">
134: A source code patch exists which remedies this problem.</a>
135: <p>
136:
1.7 tj 137: <li id="p004_bgpd">
138: <strong>004: RELIABILITY FIX: June 10, 2019</strong>
139: <i>All architectures</i>
140: <br>
141: Several issues were corrected in bgpd: "network" statements with no fixed
142: prefix were incorrectly removed when configuration was reloaded, "export
143: default-route" did not work, and "network 0.0.0.0/0" could not be used
144: in some cases.
145: <br>
146: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/004_bgpd.patch.sig">
147: A source code patch exists which remedies these problems.</a>
148: <p>
149:
150: <li id="p005_libssl">
151: <strong>005: RELIABILITY FIX: June 10, 2019</strong>
152: <i>All architectures</i>
153: <br>
154: TLS handshakes fail if a client supporting TLS 1.3 tries to connect to
155: an OpenBSD server and sends a key share extension that does not include
156: X25519.
157: <br>
158: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/005_libssl.patch.sig">
159: A source code patch exists which remedies this problem.</a>
160: <p>
161:
1.8 tj 162: <li id="p006_tcpsack">
163: <strong>006: RELIABILITY FIX: July 25, 2019</strong>
164: <i>All architectures</i>
165: <br>
166: By creating long chains of TCP SACK holes, an attacker could possibly
167: slow down the system temporarily.
168: <br>
169: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig">
170: A source code patch exists which remedies this problem.</a>
171: <p>
172:
1.9 tj 173: <li id="p007_smtpd">
174: <strong>007: RELIABILITY FIX: August 2, 2019</strong>
175: <i>All architectures</i>
176: <br>
177: smtpd can crash on excessively large input, causing a denial of service.
178: <br>
179: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/007_smtpd.patch.sig">
180: A source code patch exists which remedies this problem.</a>
181: <p>
182:
1.10 tj 183: <li id="p008_swapgs">
184: <strong>008: SECURITY FIX: August 9, 2019</strong>
185: <i>amd64</i>
186: <br>
187: Intel CPUs have another cross privilege side-channel attack. (SWAPGS)
188: <br>
189: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/008_swapgs.patch.sig">
190: A source code patch exists which remedies this problem.</a>
191: <p>
192:
1.11 tj 193: <li id="p009_resume">
194: <strong>009: RELIABILITY FIX: September 2, 2019</strong>
195: <i>amd64</i>
196: <br>
197: Resume forgot to restore MSR/PAT configuration.
198: <br>
199: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/009_resume.patch.sig">
200: A source code patch exists which remedies this problem.</a>
201: <p>
202:
203: <li id="p010_frag6ecn">
204: <strong>010: RELIABILITY FIX: September 2, 2019</strong>
1.16 tb 205: <i>All architectures</i>
1.11 tj 206: <br>
207: When processing ECN bits on incoming IPv6 fragments, the kernel
208: could crash. Per default pf fragment reassemble prevents the crash.
209: <br>
210: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/010_frag6ecn.patch.sig">
211: A source code patch exists which remedies this problem.</a>
212: <p>
213:
1.12 tj 214: <li id="p011_expat">
215: <strong>011: SECURITY FIX: September 14, 2019</strong>
216: <i>All architectures</i>
217: <br>
218: Libexpat 2.2.6 was affected by the heap overflow CVE-2019-15903.
219: <br>
220: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/011_expat.patch.sig">
221: A source code patch exists which remedies this problem.</a>
222: <p>
223:
1.14 tj 224: <li id="p012_sysupgrade">
225: <strong>012: RELIABILITY FIX: October 3, 2019</strong>
226: <i>All architectures</i>
227: <br>
228: The sysupgrade utility can be used to upgrade the system to the next
229: release or to a new snapshot.
230: <br>
231: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/012_sysupgrade.patch.sig">
232: A source code patch exists which adds this utility.</a>
233: <p>
234:
1.15 tj 235: <li id="p013_unbound">
236: <strong>013: RELIABILITY FIX: October 5, 2019</strong>
237: <i>All architectures</i>
238: <br>
239: Specially crafted queries may crash unwind and unbound.
240: <br>
241: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/013_unbound.patch.sig">
242: A source code patch exists which remedies this problem.</a>
243: <p>
244:
245: <li id="p014_dhcpd">
246: <strong>014: SECURITY FIX: October 5, 2019</strong>
247: <i>All architectures</i>
248: <br>
249: dhcpd leaks 4 bytes of stack to the network.
250: <br>
251: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/014_dhcpd.patch.sig">
252: A source code patch exists which remedies this problem.</a>
253: <p>
254:
1.17 tj 255: <li id="p015_net80211">
256: <strong>015: RELIABILITY FIX: November 16, 2019</strong>
257: <i>All architectures</i>
258: <br>
259: The kernel could crash due to a NULL pointer dereference in net80211.
260: <br>
261: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/015_net80211.patch.sig">
262: A source code patch exists which remedies this problem.</a>
263: <p>
264:
265: <li id="p016_sysupgrade">
266: <strong>016: RELIABILITY FIX: November 16, 2019</strong>
267: <i>All architectures</i>
268: <br>
269: A new kernel may require newer firmware images when using sysupgrade.
270: <br>
271: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/016_sysupgrade.patch.sig">
272: A source code patch exists which remedies this problem.</a>
273: <p>
274:
275: <li id="p017_ifioctl">
276: <strong>017: SECURITY FIX: November 16, 2019</strong>
277: <i>All architectures</i>
278: <br>
279: A regular user could change some network interface parameters due
280: to missing checks in the ioctl(2) system call.
281: <br>
282: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/017_ifioctl.patch.sig">
283: A source code patch exists which remedies this problem.</a>
284: <p>
285:
1.18 tj 286: <li id="p018_inteldrm">
287: <strong>018: SECURITY FIX: November 22, 2019</strong>
288: <i>i386 and amd64</i>
289: <br>
290: A local user could cause the system to hang by reading specific
291: registers when Intel Gen8/Gen9 graphics hardware is in a low power state.
292: A local user could perform writes to memory that should be blocked with
293: Intel Gen9 graphics hardware.
294: <br>
295: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/018_inteldrm.patch.sig">
296: A source code patch exists which remedies this problem.</a>
297: <p>
298:
299: <li id="p019_mesa">
300: <strong>019: SECURITY FIX: November 22, 2019</strong>
301: <i>All architectures</i>
302: <br>
303: Shared memory regions used by some Mesa drivers had permissions which
304: allowed others to access that memory.
305: <br>
306: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/019_mesa.patch.sig">
307: A source code patch exists which remedies this problem.</a>
308: <p>
309:
1.19 tb 310: <li id="p020_mesaxlock">
311: <strong>020: SECURITY FIX: December 4, 2019</strong>
312: <i>All architectures</i>
313: <br>
314: Environment-provided paths are used for dlopen() in mesa, resulting in
315: escalation to the auth group in xlock(1).
316: <br>
317: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/020_mesaxlock.patch.sig">
318: A source code patch exists which remedies this problem.</a>
319: <p>
320:
321: <li id="p021_libcauth">
322: <strong>021: SECURITY FIX: December 4, 2019</strong>
323: <i>All architectures</i>
324: <br>
325: libc's authentication layer performed insufficient username validation.
326: <br>
327: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/021_libcauth.patch.sig">
328: A source code patch exists which remedies this problem.</a>
329: <p>
330:
331: <li id="p022_xenodm">
332: <strong>022: SECURITY FIX: December 4, 2019</strong>
333: <i>All architectures</i>
334: <br>
335: xenodm uses the libc authentication layer incorrectly.
336: <br>
337: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/022_xenodm.patch.sig">
338: A source code patch exists which remedies this problem.</a>
339: <p>
340:
1.20 tj 341: <li id="p023_suauth">
342: <strong>023: SECURITY FIX: December 8, 2019</strong>
343: <i>All architectures</i>
344: <br>
345: A user can log in with a different user's login class.
346: <br>
347: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/023_suauth.patch.sig">
348: A source code patch exists which remedies this problem.</a>
349: <p>
350:
1.21 tj 351: <li id="p024_ldso">
352: <strong>024: SECURITY FIX: December 11, 2019</strong>
353: <i>All architectures</i>
354: <br>
355: ld.so may fail to remove the LD_LIBRARY_PATH environment variable for
356: set-user-ID and set-group-ID executables in low memory conditions.
357: <br>
358: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/024_ldso.patch.sig">
359: A source code patch exists which remedies this problem.</a>
360: <p>
361:
1.22 tj 362: <li id="p025_eret">
363: <strong>025: SECURITY FIX: December 18, 2019</strong>
364: <i>arm64</i>
365: <br>
366: ARM64 CPUs speculatively execute instructions after ERET.
367: <br>
368: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/025_eret.patch.sig">
369: A source code patch exists which remedies this problem.</a>
370: <p>
371:
1.23 tj 372: <li id="p026_ftp">
373: <strong>026: SECURITY FIX: December 20, 2019</strong>
374: <i>All architectures</i>
375: <br>
376: ftp(1) will follow remote redirects to local files.
377: <br>
378: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/026_ftp.patch.sig">
379: A source code patch exists which remedies this problem.</a>
380: <p>
381:
382: <li id="p027_ripd">
383: <strong>027: SECURITY FIX: December 20, 2019</strong>
384: <i>All architectures</i>
385: <br>
386: ripd(8) fails to validate authentication lengths.
387: <br>
388: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/027_ripd.patch.sig">
389: A source code patch exists which remedies this problem.</a>
390: <p>
391:
1.24 tj 392: <li id="p028_inteldrmctx">
393: <strong>028: SECURITY FIX: January 17, 2020</strong>
394: <i>i386 and amd64</i>
395: <br>
396: Execution Unit state was not cleared on context switch with Intel Gen9
397: graphics hardware.
398: <br>
399: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/028_inteldrmctx.patch.sig">
400: A source code patch exists which remedies this problem.</a>
401: <p>
402:
1.25 tj 403: <li id="p029_smtpd_tls">
404: <strong>029: RELIABILITY FIX: January 30, 2020</strong>
405: <i>All architectures</i>
406: <br>
407: smtpd can crash on opportunistic TLS downgrade, causing a denial of service.
408: <br>
409: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/029_smtpd_tls.patch.sig">
410: A source code patch exists which remedies this problem.</a>
411: <p>
412:
413: <li id="p030_smtpd_exec">
414: <strong>030: SECURITY FIX: January 30, 2020</strong>
415: <i>All architectures</i>
416: <br>
417: An incorrect check allows an attacker to trick mbox delivery into executing
418: arbitrary commands as root and lmtp delivery into executing arbitrary commands
419: as an unprivileged user.
420: <br>
421: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/030_smtpd_exec.patch.sig">
422: A source code patch exists which remedies this problem.</a>
423: <p>
424:
1.26 tj 425: <li id="p031_smtpd_envelope">
426: <strong>031: SECURITY FIX: February 24, 2020</strong>
427: <i>All architectures</i>
428: <br>
429: An out of bounds read in smtpd allows an attacker to inject arbitrary
430: commands into the envelope file which are then executed as root.
431: Separately, missing privilege revocation in smtpctl allows arbitrary
432: commands to be run with the _smtpq group.
433: <br>
434: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/031_smtpd_envelope.patch.sig">
435: A source code patch exists which remedies this problem.</a>
436: <p>
1.27 tj 437:
438: <li id="p032_sysctl">
439: <strong>032: RELIABILITY FIX: March 10, 2020</strong>
440: <i>All architectures</i>
441: <br>
442: Missing input validation in sysctl(2) can be used to crash the kernel.
443: <br>
444: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/032_sysctl.patch.sig">
445: A source code patch exists which remedies this problem.</a>
446: <p>
447:
1.28 tj 448: <li id="p033_sosplice">
449: <strong>033: RELIABILITY FIX: March 13, 2020</strong>
450: <i>All architectures</i>
451: <br>
452: Local outbound UDP broadcast or multicast packets sent by a spliced
453: socket can crash the kernel.
454: <br>
455: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/033_sosplice.patch.sig">
456: A source code patch exists which remedies this problem.</a>
457: <p>
458:
1.29 tj 459: <li id="p034_dhcpd">
460: <strong>034: SECURITY FIX: April 7, 2020</strong>
461: <i>All architectures</i>
462: <br>
463: dhcpd could reference freed memory after releasing a lease with an
464: unusually long uid.
465: <br>
466: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/034_dhcpd.patch.sig">
467: A source code patch exists which remedies this problem.</a>
468: <p>
469:
1.30 tj 470: <li id="p035_drm">
471: <strong>035: SECURITY FIX: April 19, 2020</strong>
472: <i>i386, amd64, arm64, loongson, macppc, sparc64</i>
473: <br>
1.31 tj 474: There was an incorrect test for root in the DRM Linux compatibility code.
1.30 tj 475: <br>
476: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/035_drm.patch.sig">
477: A source code patch exists which remedies this problem.</a>
478: <p>
479:
1.34 tj 480: <li id="p036_ospfd_lsa">
481: <strong>036: RELIABILITY FIX: May 10, 2020</strong>
482: <i>All architectures</i>
483: <br>
484: ospfd could generate corrupt OSPF Router (Type 1) LSAs in certain situations.
485: <br>
486: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/036_ospfd_lsa.patch.sig">
487: A source code patch exists which remedies this problem.</a>
488: <p>
489:
1.35 tj 490: <li id="p037_wscons">
491: <strong>037: SECURITY FIX: May 13, 2020</strong>
492: <i>All architectures</i>
493: <br>
494: An out-of-bounds index access in wscons(4) can cause a kernel crash.
495: <br>
496: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/037_wscons.patch.sig">
497: A source code patch exists which remedies this problem.</a>
498: <p>
499:
1.1 deraadt 500: </ul>
501:
502: <hr>
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