| Name | CVE-2019-6471 |
| Description | A 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 930746 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bind9 (PTS) | jessie, jessie (lts) | 1:9.9.5.dfsg-9+deb8u31 | fixed |
| stretch (security) | 1:9.10.3.dfsg.P4-12.3+deb9u12 | fixed |
| stretch (lts), stretch | 1:9.10.3.dfsg.P4-12.3+deb9u17 | fixed |
| buster, buster (lts) | 1:9.11.5.P4+dfsg-5.1+deb10u13 | fixed |
| buster (security) | 1:9.11.5.P4+dfsg-5.1+deb10u11 | fixed |
| bullseye | 1:9.16.50-1~deb11u2 | fixed |
| bullseye (security) | 1:9.16.50-1~deb11u1 | fixed |
| bookworm (security), bookworm | 1:9.18.28-1~deb12u2 | fixed |
| trixie | 1:9.20.4-2 | fixed |
| sid | 1:9.20.4-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bind9 | source | wheezy | (not affected) | | | |
| bind9 | source | jessie | (not affected) | | | |
| bind9 | source | stretch | (not affected) | | | |
| bind9 | source | (unstable) | 1:9.11.5.P4+dfsg-5.1 | | | 930746 |
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)
[wheezy] - bind9 <not-affected> (Vulnerable code introduced later, version 9.11)