CVE-2019-6471

NameCVE-2019-6471
DescriptionA race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs930746

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)jessie1:9.9.5.dfsg-9+deb8u15fixed
jessie (security)1:9.9.5.dfsg-9+deb8u18fixed
stretch (security), stretch1:9.10.3.dfsg.P4-12.3+deb9u5fixed
bullseye, sid, buster1:9.11.5.P4+dfsg-5.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9source(unstable)1:9.11.5.P4+dfsg-5.1930746
bind9sourcejessie(not affected)
bind9sourcestretch(not affected)

Notes

[stretch] - bind9 <not-affected> (Only affects 9.11 and later)
[jessie] - bind9 <not-affected> (Only affects 9.11 and later)
https://kb.isc.org/v1/docs/cve-2019-6471
https://gitlab.isc.org/isc-projects/bind9/commit/60c42f849d520564ed42e5ed0ba46b4b69c07712 (master)
https://gitlab.isc.org/isc-projects/bind9/commit/3a9c7bb80d4a609b86427406d9dd783199920b5b (v9_11)

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