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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>
24: <a href="errata21.html">2.1</a>,
25: <a href="errata22.html">2.2</a>,
26: <a href="errata23.html">2.3</a>,
27: <a href="errata24.html">2.4</a>,
28: <a href="errata25.html">2.5</a>,
29: <a href="errata26.html">2.6</a>,
30: <a href="errata27.html">2.7</a>,
31: <a href="errata28.html">2.8</a>,
32: <a href="errata29.html">2.9</a>,
33: <a href="errata30.html">3.0</a>,
34: <a href="errata31.html">3.1</a>,
35: <a href="errata32.html">3.2</a>,
36: <a href="errata33.html">3.3</a>,
37: <a href="errata34.html">3.4</a>,
38: <a href="errata35.html">3.5</a>,
39: <a href="errata36.html">3.6</a>,
40: <br>
41: <a href="errata37.html">3.7</a>,
42: <a href="errata38.html">3.8</a>,
43: <a href="errata39.html">3.9</a>,
44: <a href="errata40.html">4.0</a>,
45: <a href="errata41.html">4.1</a>,
46: <a href="errata42.html">4.2</a>,
47: <a href="errata43.html">4.3</a>,
48: <a href="errata44.html">4.4</a>,
49: <a href="errata45.html">4.5</a>,
50: <a href="errata46.html">4.6</a>,
51: <a href="errata47.html">4.7</a>,
52: <a href="errata48.html">4.8</a>,
53: <a href="errata49.html">4.9</a>,
54: <a href="errata50.html">5.0</a>,
55: <a href="errata51.html">5.1</a>,
56: <a href="errata52.html">5.2</a>,
57: <br>
58: <a href="errata53.html">5.3</a>,
59: <a href="errata54.html">5.4</a>,
60: <a href="errata55.html">5.5</a>,
61: <a href="errata56.html">5.6</a>,
62: <a href="errata57.html">5.7</a>,
63: <a href="errata58.html">5.8</a>,
64: <a href="errata59.html">5.9</a>,
65: <a href="errata60.html">6.0</a>,
66: <a href="errata61.html">6.1</a>,
67: <a href="errata62.html">6.2</a>,
68: <a href="errata63.html">6.3</a>,
1.13 deraadt 69: <a href="errata64.html">6.4</a>,
70: <a href="errata66.html">6.6</a>.
1.1 deraadt 71: <hr>
72:
73: <p>
74: Patches for the OpenBSD base system are distributed as unified diffs.
75: Each patch is cryptographically signed with the
76: <a href="https://man.openbsd.org/OpenBSD-6.5/signify.1">signify(1)</a> tool and contains
77: usage instructions.
78: All the following patches are also available in one
79: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5.tar.gz">tar.gz file</a>
80: for convenience.
81:
82: <p>
83: Alternatively, the <a href="https://man.openbsd.org/syspatch">syspatch(8)</a>
84: utility can be used to apply binary updates on the following architectures:
85: amd64, i386, arm64.
86:
87: <p>
88: Patches for supported releases are also incorporated into the
89: <a href="stable.html">-stable branch</a>, which is maintained for one year
90: after release.
91:
92: <hr>
93:
94: <ul>
95:
1.2 tj 96: <li id="p001_rip6cksum">
1.5 bentley 97: <strong>001: RELIABILITY FIX: May 3, 2019</strong>
1.2 tj 98: <i>All architectures</i>
99: <br>
100: If a userland program sets the IPv6 checksum offset on a raw socket,
101: an incoming packet could crash the kernel. ospf6d is such a program.
102: <br>
1.3 tj 103: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/001_rip6cksum.patch.sig">
1.2 tj 104: A source code patch exists which remedies this problem.</a>
105: <p>
1.1 deraadt 106:
1.4 tj 107: <li id="p002_srtp">
1.5 bentley 108: <strong>002: RELIABILITY FIX: May 16, 2019</strong>
1.4 tj 109: <i>All architectures</i>
110: <br>
111: LibreSSL servers did not provide an SRTP profile, so DTLS negotiation failed.
112: <br>
113: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/002_srtp.patch.sig">
114: A source code patch exists which remedies this problem.</a>
115: <p>
116:
1.6 tj 117: <li id="p003_mds">
118: <strong>003: SECURITY FIX: May 29, 2019</strong>
119: <i>amd64</i>
120: <br>
121: Intel CPUs have a cross privilege side-channel attack (MDS).
122: <br>
123: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/003_mds.patch.sig">
124: A source code patch exists which remedies this problem.</a>
125: <p>
126:
1.7 tj 127: <li id="p004_bgpd">
128: <strong>004: RELIABILITY FIX: June 10, 2019</strong>
129: <i>All architectures</i>
130: <br>
131: Several issues were corrected in bgpd: "network" statements with no fixed
132: prefix were incorrectly removed when configuration was reloaded, "export
133: default-route" did not work, and "network 0.0.0.0/0" could not be used
134: in some cases.
135: <br>
136: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/004_bgpd.patch.sig">
137: A source code patch exists which remedies these problems.</a>
138: <p>
139:
140: <li id="p005_libssl">
141: <strong>005: RELIABILITY FIX: June 10, 2019</strong>
142: <i>All architectures</i>
143: <br>
144: TLS handshakes fail if a client supporting TLS 1.3 tries to connect to
145: an OpenBSD server and sends a key share extension that does not include
146: X25519.
147: <br>
148: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/005_libssl.patch.sig">
149: A source code patch exists which remedies this problem.</a>
150: <p>
151:
1.8 tj 152: <li id="p006_tcpsack">
153: <strong>006: RELIABILITY FIX: July 25, 2019</strong>
154: <i>All architectures</i>
155: <br>
156: By creating long chains of TCP SACK holes, an attacker could possibly
157: slow down the system temporarily.
158: <br>
159: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig">
160: A source code patch exists which remedies this problem.</a>
161: <p>
162:
1.9 tj 163: <li id="p007_smtpd">
164: <strong>007: RELIABILITY FIX: August 2, 2019</strong>
165: <i>All architectures</i>
166: <br>
167: smtpd can crash on excessively large input, causing a denial of service.
168: <br>
169: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/007_smtpd.patch.sig">
170: A source code patch exists which remedies this problem.</a>
171: <p>
172:
1.10 tj 173: <li id="p008_swapgs">
174: <strong>008: SECURITY FIX: August 9, 2019</strong>
175: <i>amd64</i>
176: <br>
177: Intel CPUs have another cross privilege side-channel attack. (SWAPGS)
178: <br>
179: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/008_swapgs.patch.sig">
180: A source code patch exists which remedies this problem.</a>
181: <p>
182:
1.11 tj 183: <li id="p009_resume">
184: <strong>009: RELIABILITY FIX: September 2, 2019</strong>
185: <i>amd64</i>
186: <br>
187: Resume forgot to restore MSR/PAT configuration.
188: <br>
189: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/009_resume.patch.sig">
190: A source code patch exists which remedies this problem.</a>
191: <p>
192:
193: <li id="p010_frag6ecn">
194: <strong>010: RELIABILITY FIX: September 2, 2019</strong>
1.16 tb 195: <i>All architectures</i>
1.11 tj 196: <br>
197: When processing ECN bits on incoming IPv6 fragments, the kernel
198: could crash. Per default pf fragment reassemble prevents the crash.
199: <br>
200: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/010_frag6ecn.patch.sig">
201: A source code patch exists which remedies this problem.</a>
202: <p>
203:
1.12 tj 204: <li id="p011_expat">
205: <strong>011: SECURITY FIX: September 14, 2019</strong>
206: <i>All architectures</i>
207: <br>
208: Libexpat 2.2.6 was affected by the heap overflow CVE-2019-15903.
209: <br>
210: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/011_expat.patch.sig">
211: A source code patch exists which remedies this problem.</a>
212: <p>
213:
1.14 tj 214: <li id="p012_sysupgrade">
215: <strong>012: RELIABILITY FIX: October 3, 2019</strong>
216: <i>All architectures</i>
217: <br>
218: The sysupgrade utility can be used to upgrade the system to the next
219: release or to a new snapshot.
220: <br>
221: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/012_sysupgrade.patch.sig">
222: A source code patch exists which adds this utility.</a>
223: <p>
224:
1.15 tj 225: <li id="p013_unbound">
226: <strong>013: RELIABILITY FIX: October 5, 2019</strong>
227: <i>All architectures</i>
228: <br>
229: Specially crafted queries may crash unwind and unbound.
230: <br>
231: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/013_unbound.patch.sig">
232: A source code patch exists which remedies this problem.</a>
233: <p>
234:
235: <li id="p014_dhcpd">
236: <strong>014: SECURITY FIX: October 5, 2019</strong>
237: <i>All architectures</i>
238: <br>
239: dhcpd leaks 4 bytes of stack to the network.
240: <br>
241: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/014_dhcpd.patch.sig">
242: A source code patch exists which remedies this problem.</a>
243: <p>
244:
1.17 tj 245: <li id="p015_net80211">
246: <strong>015: RELIABILITY FIX: November 16, 2019</strong>
247: <i>All architectures</i>
248: <br>
249: The kernel could crash due to a NULL pointer dereference in net80211.
250: <br>
251: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/015_net80211.patch.sig">
252: A source code patch exists which remedies this problem.</a>
253: <p>
254:
255: <li id="p016_sysupgrade">
256: <strong>016: RELIABILITY FIX: November 16, 2019</strong>
257: <i>All architectures</i>
258: <br>
259: A new kernel may require newer firmware images when using sysupgrade.
260: <br>
261: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/016_sysupgrade.patch.sig">
262: A source code patch exists which remedies this problem.</a>
263: <p>
264:
265: <li id="p017_ifioctl">
266: <strong>017: SECURITY FIX: November 16, 2019</strong>
267: <i>All architectures</i>
268: <br>
269: A regular user could change some network interface parameters due
270: to missing checks in the ioctl(2) system call.
271: <br>
272: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/017_ifioctl.patch.sig">
273: A source code patch exists which remedies this problem.</a>
274: <p>
275:
1.18 tj 276: <li id="p018_inteldrm">
277: <strong>018: SECURITY FIX: November 22, 2019</strong>
278: <i>i386 and amd64</i>
279: <br>
280: A local user could cause the system to hang by reading specific
281: registers when Intel Gen8/Gen9 graphics hardware is in a low power state.
282: A local user could perform writes to memory that should be blocked with
283: Intel Gen9 graphics hardware.
284: <br>
285: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/018_inteldrm.patch.sig">
286: A source code patch exists which remedies this problem.</a>
287: <p>
288:
289: <li id="p019_mesa">
290: <strong>019: SECURITY FIX: November 22, 2019</strong>
291: <i>All architectures</i>
292: <br>
293: Shared memory regions used by some Mesa drivers had permissions which
294: allowed others to access that memory.
295: <br>
296: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/019_mesa.patch.sig">
297: A source code patch exists which remedies this problem.</a>
298: <p>
299:
1.19 tb 300: <li id="p020_mesaxlock">
301: <strong>020: SECURITY FIX: December 4, 2019</strong>
302: <i>All architectures</i>
303: <br>
304: Environment-provided paths are used for dlopen() in mesa, resulting in
305: escalation to the auth group in xlock(1).
306: <br>
307: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/020_mesaxlock.patch.sig">
308: A source code patch exists which remedies this problem.</a>
309: <p>
310:
311: <li id="p021_libcauth">
312: <strong>021: SECURITY FIX: December 4, 2019</strong>
313: <i>All architectures</i>
314: <br>
315: libc's authentication layer performed insufficient username validation.
316: <br>
317: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/021_libcauth.patch.sig">
318: A source code patch exists which remedies this problem.</a>
319: <p>
320:
321: <li id="p022_xenodm">
322: <strong>022: SECURITY FIX: December 4, 2019</strong>
323: <i>All architectures</i>
324: <br>
325: xenodm uses the libc authentication layer incorrectly.
326: <br>
327: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/022_xenodm.patch.sig">
328: A source code patch exists which remedies this problem.</a>
329: <p>
330:
1.20 tj 331: <li id="p023_suauth">
332: <strong>023: SECURITY FIX: December 8, 2019</strong>
333: <i>All architectures</i>
334: <br>
335: A user can log in with a different user's login class.
336: <br>
337: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/023_suauth.patch.sig">
338: A source code patch exists which remedies this problem.</a>
339: <p>
340:
1.21 tj 341: <li id="p024_ldso">
342: <strong>024: SECURITY FIX: December 11, 2019</strong>
343: <i>All architectures</i>
344: <br>
345: ld.so may fail to remove the LD_LIBRARY_PATH environment variable for
346: set-user-ID and set-group-ID executables in low memory conditions.
347: <br>
348: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/024_ldso.patch.sig">
349: A source code patch exists which remedies this problem.</a>
350: <p>
351:
1.22 tj 352: <li id="p025_eret">
353: <strong>025: SECURITY FIX: December 18, 2019</strong>
354: <i>arm64</i>
355: <br>
356: ARM64 CPUs speculatively execute instructions after ERET.
357: <br>
358: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/025_eret.patch.sig">
359: A source code patch exists which remedies this problem.</a>
360: <p>
361:
1.23 tj 362: <li id="p026_ftp">
363: <strong>026: SECURITY FIX: December 20, 2019</strong>
364: <i>All architectures</i>
365: <br>
366: ftp(1) will follow remote redirects to local files.
367: <br>
368: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/026_ftp.patch.sig">
369: A source code patch exists which remedies this problem.</a>
370: <p>
371:
372: <li id="p027_ripd">
373: <strong>027: SECURITY FIX: December 20, 2019</strong>
374: <i>All architectures</i>
375: <br>
376: ripd(8) fails to validate authentication lengths.
377: <br>
378: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/027_ripd.patch.sig">
379: A source code patch exists which remedies this problem.</a>
380: <p>
381:
1.24 tj 382: <li id="p028_inteldrmctx">
383: <strong>028: SECURITY FIX: January 17, 2020</strong>
384: <i>i386 and amd64</i>
385: <br>
386: Execution Unit state was not cleared on context switch with Intel Gen9
387: graphics hardware.
388: <br>
389: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/028_inteldrmctx.patch.sig">
390: A source code patch exists which remedies this problem.</a>
391: <p>
392:
1.25 tj 393: <li id="p029_smtpd_tls">
394: <strong>029: RELIABILITY FIX: January 30, 2020</strong>
395: <i>All architectures</i>
396: <br>
397: smtpd can crash on opportunistic TLS downgrade, causing a denial of service.
398: <br>
399: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/029_smtpd_tls.patch.sig">
400: A source code patch exists which remedies this problem.</a>
401: <p>
402:
403: <li id="p030_smtpd_exec">
404: <strong>030: SECURITY FIX: January 30, 2020</strong>
405: <i>All architectures</i>
406: <br>
407: An incorrect check allows an attacker to trick mbox delivery into executing
408: arbitrary commands as root and lmtp delivery into executing arbitrary commands
409: as an unprivileged user.
410: <br>
411: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/030_smtpd_exec.patch.sig">
412: A source code patch exists which remedies this problem.</a>
413: <p>
414:
1.26 ! tj 415: <li id="p031_smtpd_envelope">
! 416: <strong>031: SECURITY FIX: February 24, 2020</strong>
! 417: <i>All architectures</i>
! 418: <br>
! 419: An out of bounds read in smtpd allows an attacker to inject arbitrary
! 420: commands into the envelope file which are then executed as root.
! 421: Separately, missing privilege revocation in smtpctl allows arbitrary
! 422: commands to be run with the _smtpq group.
! 423: <br>
! 424: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/031_smtpd_envelope.patch.sig">
! 425: A source code patch exists which remedies this problem.</a>
! 426: <p>
1.1 deraadt 427: </ul>
428:
429: <hr>
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