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18: <h2>
19: <a href="index.html">
20: <font color="#0000ff"><i>Open</i></font><font color="#000084">BSD</font></a>
21: <font color="#e00000">6.4 Errata</font>
22: </h2>
23: <hr>
24:
25: For errata on a certain release, click below:<br>
26: <a href="errata21.html">2.1</a>,
27: <a href="errata22.html">2.2</a>,
28: <a href="errata23.html">2.3</a>,
29: <a href="errata24.html">2.4</a>,
30: <a href="errata25.html">2.5</a>,
31: <a href="errata26.html">2.6</a>,
32: <a href="errata27.html">2.7</a>,
33: <a href="errata28.html">2.8</a>,
34: <a href="errata29.html">2.9</a>,
35: <a href="errata30.html">3.0</a>,
36: <a href="errata31.html">3.1</a>,
37: <a href="errata32.html">3.2</a>,
38: <a href="errata33.html">3.3</a>,
39: <a href="errata34.html">3.4</a>,
40: <a href="errata35.html">3.5</a>,
41: <a href="errata36.html">3.6</a>,
42: <br>
43: <a href="errata37.html">3.7</a>,
44: <a href="errata38.html">3.8</a>,
45: <a href="errata39.html">3.9</a>,
46: <a href="errata40.html">4.0</a>,
47: <a href="errata41.html">4.1</a>,
48: <a href="errata42.html">4.2</a>,
49: <a href="errata43.html">4.3</a>,
50: <a href="errata44.html">4.4</a>,
51: <a href="errata45.html">4.5</a>,
52: <a href="errata46.html">4.6</a>,
53: <a href="errata47.html">4.7</a>,
54: <a href="errata48.html">4.8</a>,
55: <a href="errata49.html">4.9</a>,
56: <a href="errata50.html">5.0</a>,
57: <a href="errata51.html">5.1</a>,
58: <a href="errata52.html">5.2</a>,
59: <br>
60: <a href="errata53.html">5.3</a>,
61: <a href="errata54.html">5.4</a>,
62: <a href="errata55.html">5.5</a>,
63: <a href="errata56.html">5.6</a>,
64: <a href="errata57.html">5.7</a>,
65: <a href="errata58.html">5.8</a>,
66: <a href="errata59.html">5.9</a>,
67: <a href="errata60.html">6.0</a>,
68: <a href="errata61.html">6.1</a>,
69: <a href="errata62.html">6.2</a>,
1.2 tb 70: <a href="errata63.html">6.3</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
1.3 tb 76: <a href="https://man.openbsd.org/OpenBSD-6.4/signify.1">signify(1)</a> tool and contains
1.1 deraadt 77: usage instructions.
78: All the following patches are also available in one
79: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4.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:
1.4 tj 96: <li id="p001_xserver">
97: <font color="#009000">
98: <strong>001: SECURITY FIX: October 25, 2018</strong></font>
99: <i>All architectures</i>
100: <br>
101: The Xorg X server incorrectly validates certain options, allowing arbitrary
102: files to be overwritten.
103: As an immediate (temporary) workaround, the Xorg binary can be disabled
104: by running: <code>chmod u-s /usr/X11R6/bin/Xorg</code>
105: <br>
106: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/001_xserver.patch.sig">
107: A source code patch exists which remedies this problem.</a>
108: <p>
1.1 deraadt 109:
1.5 tj 110: <li id="p002_syspatch">
111: <font color="#009000">
112: <strong>002: RELIABILITY FIX: November 2, 2018</strong></font>
113: <i>i386, amd64, arm64</i>
114: <br>
115: The syspatch utility incorrectly handles symbolic links.
116: <br>
117: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/002_syspatch.patch.sig">
118: A source code patch exists which remedies this problem.</a>
119: <p>
120:
1.6 tj 121: <li id="p003_portsmash">
122: <font color="#009000">
123: <strong>003: SECURITY FIX: November 17, 2018</strong></font>
124: <i>All architectures</i>
125: <br>
126: The portsmash vulnerability allows exfiltration of elliptic curve keys.
127: <br>
128: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/003_portsmash.patch.sig">
129: A source code patch exists which remedies this problem.</a>
130: <p>
131:
132: <li id="p004_lockf">
133: <font color="#009000">
134: <strong>004: RELIABILITY FIX: November 17, 2018</strong></font>
135: <i>All architectures</i>
136: <br>
137: A recent change to POSIX file locks could cause incorrect results
138: during lock acquisition.
139: <br>
140: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/004_lockf.patch.sig">
141: A source code patch exists which remedies this problem.</a>
142: <p>
143:
1.8 tj 144: <li id="p005_perl">
145: <font color="#009000">
146: <strong>005: SECURITY FIX: November 29, 2018</strong></font>
147: <i>All architectures</i>
148: <br>
149: Various overflows exist in perl.
150: <br>
151: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/005_perl.patch.sig">
152: A source code patch exists which remedies this problem.</a>
153: <p>
154:
155: <li id="p006_uipc">
156: <font color="#009000">
157: <strong>006: RELIABILITY FIX: November 29, 2018</strong></font>
158: <i>All architectures</i>
159: <br>
160: UNIX domain sockets leak kernel memory with MSG_PEEK on SCM_RIGHTS, or can
161: attempt excessive memory allocations leading to a crash.
162: <br>
163: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/006_uipc.patch.sig">
164: A source code patch exists which remedies this problem.</a>
165: <p>
166:
167: <li id="p007_smtpd">
168: <font color="#009000">
169: <strong>007: RELIABILITY FIX: November 29, 2018</strong></font>
170: <i>All architectures</i>
171: <br>
172: The mail.mda and mail.lmtp delivery agents were not reporting temporary
173: failures correctly, causing smtpd to bounce messages in some cases where
174: it should have retried them.
175: <br>
176: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/007_smtpd.patch.sig">
177: A source code patch exists which remedies this problem.</a>
178: <p>
179:
180: <li id="p008_qcow2">
181: <font color="#009000">
182: <strong>008: RELIABILITY FIX: November 29, 2018</strong></font>
183: <i>amd64 and i386</i>
184: <br>
185: Writing more than 4GB to a qcow2 volume corrupts the virtual disk.
186: <br>
187: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/008_qcow2.patch.sig">
188: A source code patch exists which remedies this problem.</a>
189: <p>
190:
1.9 tj 191: <li id="p009_recvwait">
192: <font color="#009000">
193: <strong>009: RELIABILITY FIX: December 20, 2018</strong></font>
194: <i>All architectures</i>
195: <br>
196: While recv(2) with the MSG_WAITALL flag was receiving control
197: messages from a socket, the kernel could panic.
198: <br>
199: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/009_recvwait.patch.sig">
200: A source code patch exists which remedies this problem.</a>
201: <p>
202:
1.10 tj 203: <li id="p010_pcbopts">
204: <font color="#009000">
205: <strong>010: SECURITY FIX: December 22, 2018</strong></font>
206: <i>All architectures</i>
207: <br>
208: The setsockopt(2) system call could overflow mbuf cluster kernel
209: memory by 4 bytes.
210: <br>
211: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/010_pcbopts.patch.sig">
212: A source code patch exists which remedies this problem.</a>
213: <p>
214:
1.11 tj 215: <li id="p011_mincore">
216: <font color="#009000">
217: <strong>011: SECURITY FIX: January 27, 2019</strong></font>
218: <i>All architectures</i>
219: <br>
220: The mincore() system call can be used to observe memory access patterns
221: of other processes.
222: <br>
223: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/011_mincore.patch.sig">
224: A source code patch exists which remedies this problem.</a>
225: <p>
226:
227: <li id="p012_nfs">
228: <font color="#009000">
229: <strong>012: RELIABILITY FIX: January 27, 2019</strong></font>
230: <i>All architectures</i>
231: <br>
232: Missing length checks in the NFS server and client can lead to crashes
233: and other errors.
234: <br>
235: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/012_nfs.patch.sig">
236: A source code patch exists which remedies this problem.</a>
237: <p>
238:
239: <li id="p013_unveil">
240: <font color="#009000">
241: <strong>013: SECURITY FIX: January 27, 2019</strong></font>
242: <i>All architectures</i>
243: <br>
244: The unveil() system call can leak memory.
245: <br>
246: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/013_unveil.patch.sig">
247: A source code patch exists which remedies this problem.</a>
248: <p>
249:
1.12 tj 250: <li id="p014_pf6frag">
251: <font color="#009000">
252: <strong>014: SECURITY FIX: March 1, 2019</strong></font>
253: <i>All architectures</i>
254: <br>
255: Fragmented IPv6 packets may be erroneously passed by pf or lead to a crash.
256: <br>
257: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/014_pf6frag.patch.sig">
258: A source code patch exists which remedies this problem.</a>
259: <p>
260:
1.13 tj 261: <li id="p015_pficmp">
262: <font color="#009000">
263: <strong>015: SECURITY FIX: March 22, 2019</strong></font>
264: <i>All architectures</i>
265: <br>
266: A state in pf could pass ICMP packets to a destination IP address
267: that did not match the state.
268: <br>
269: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/015_pficmp.patch.sig">
270: A source code patch exists which remedies this problem.</a>
271: <p>
272:
1.14 ! tj 273: <li id="p016_vmmints">
! 274: <font color="#009000">
! 275: <strong>016: SECURITY FIX: March 27, 2019</strong></font>
! 276: <i>amd64 and i386</i>
! 277: <br>
! 278: GDT and IDT limits were improperly restored during VMM context switches.
! 279: <br>
! 280: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.4/common/016_vmmints.patch.sig">
! 281: A source code patch exists which remedies this problem.</a>
! 282: <p>
! 283:
1.1 deraadt 284: </ul>
285:
286: <hr>
287:
288: </body>
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