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16: <h2 id=OpenBSD>
17: <a href="index.html">
18: <i>Open</i><b>BSD</b></a>
19: 6.6 Errata
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>,
69: <a href="errata64.html">6.4</a>,
1.3 deraadt 70: <a href="errata65.html">6.5</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-6.6/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/6.6.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_bpf">
97: <strong>001: RELIABILITY FIX: October 28, 2019</strong>
98: <i>All architectures</i>
99: <br>
100: bpf(4) has a race condition during device removal.
101: <br>
102: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/001_bpf.patch.sig">
103: A source code patch exists which remedies this problem.</a>
104: <p>
105:
106: <li id="p002_ber">
107: <strong>002: RELIABILITY FIX: October 28, 2019</strong>
108: <i>All architectures</i>
109: <br>
110: Various third party applications may crash due to symbol collision.
111: <br>
112: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/002_ber.patch.sig">
113: A source code patch exists which remedies this problem.</a>
114: <p>
1.1 deraadt 115:
1.4 tj 116: <li id="p003_bgpd">
117: <strong>003: RELIABILITY FIX: October 31, 2019</strong>
118: <i>All architectures</i>
119: <br>
120: bgpd(8) can crash on nexthop changes or during startup in certain
121: configurations.
122: <br>
123: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/003_bgpd.patch.sig">
124: A source code patch exists which remedies this problem.</a>
125: <p>
126:
1.5 tj 127: <li id="p004_net80211">
128: <strong>004: RELIABILITY FIX: November 16, 2019</strong>
129: <i>All architectures</i>
130: <br>
131: The kernel could crash due to a NULL pointer dereference in net80211.
132: <br>
133: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/004_net80211.patch.sig">
134: A source code patch exists which remedies this problem.</a>
135: <p>
136:
137: <li id="p005_sysupgrade">
138: <strong>005: RELIABILITY FIX: November 16, 2019</strong>
139: <i>All architectures</i>
140: <br>
141: A new kernel may require newer firmware images when using sysupgrade.
142: <br>
143: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/005_sysupgrade.patch.sig">
144: A source code patch exists which remedies this problem.</a>
145: <p>
146:
147: <li id="p006_ifioctl">
148: <strong>006: SECURITY FIX: November 16, 2019</strong>
149: <i>All architectures</i>
150: <br>
151: A regular user could change some network interface parameters due
152: to missing checks in the ioctl(2) system call.
153: <br>
154: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/006_ifioctl.patch.sig">
155: A source code patch exists which remedies this problem.</a>
156: <p>
157:
1.6 tj 158: <li id="p007_inteldrm">
159: <strong>007: SECURITY FIX: November 22, 2019</strong>
160: <i>i386 and amd64</i>
161: <br>
162: A local user could cause the system to hang by reading specific
163: registers when Intel Gen8/Gen9 graphics hardware is in a low power state.
164: A local user could perform writes to memory that should be blocked with
165: Intel Gen9 graphics hardware.
166: <br>
167: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/007_inteldrm.patch.sig">
168: A source code patch exists which remedies this problem.</a>
169: <p>
170:
171: <li id="p008_mesa">
172: <strong>008: SECURITY FIX: November 22, 2019</strong>
173: <i>All architectures</i>
174: <br>
175: Shared memory regions used by some Mesa drivers had permissions which
176: allowed others to access that memory.
177: <br>
178: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/008_mesa.patch.sig">
179: A source code patch exists which remedies this problem.</a>
180: <p>
181:
1.7 tb 182: <li id="p009_mesaxlock">
183: <strong>009: SECURITY FIX: December 4, 2019</strong>
184: <i>All architectures</i>
185: <br>
186: Environment-provided paths are used for dlopen() in mesa, resulting in
187: escalation to the auth group in xlock(1).
188: <br>
189: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/009_mesaxlock.patch.sig">
190: A source code patch exists which remedies this problem.</a>
191: <p>
192:
193: <li id="p010_libcauth">
194: <strong>010: SECURITY FIX: December 4, 2019</strong>
195: <i>All architectures</i>
196: <br>
197: libc's authentication layer performed insufficient username validation.
198: <br>
199: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/010_libcauth.patch.sig">
200: A source code patch exists which remedies this problem.</a>
201: <p>
202:
203: <li id="p011_xenodm">
204: <strong>011: SECURITY FIX: December 4, 2019</strong>
205: <i>All architectures</i>
206: <br>
207: xenodm uses the libc authentication layer incorrectly.
208: <br>
209: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/011_xenodm.patch.sig">
210: A source code patch exists which remedies this problem.</a>
211: <p>
212:
1.8 tj 213: <li id="p012_suauth">
214: <strong>012: SECURITY FIX: December 8, 2019</strong>
215: <i>All architectures</i>
216: <br>
217: A user can log in with a different user's login class.
218: <br>
219: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/012_suauth.patch.sig">
220: A source code patch exists which remedies this problem.</a>
221: <p>
222:
1.9 ! tj 223: <li id="p013_ldso">
! 224: <strong>013: SECURITY FIX: December 11, 2019</strong>
! 225: <i>All architectures</i>
! 226: <br>
! 227: ld.so may fail to remove the LD_LIBRARY_PATH environment variable for
! 228: set-user-ID and set-group-ID executables in low memory conditions.
! 229: <br>
! 230: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/6.6/common/013_ldso.patch.sig">
! 231: A source code patch exists which remedies this problem.</a>
! 232: <p>
! 233:
1.1 deraadt 234: </ul>
235:
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