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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>
195: <i>amd64</i>
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:
1.1 deraadt 245: </ul>
246:
247: <hr>