CVE-2021-25215

NameCVE-2021-25215
DescriptionIn BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.
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)
ReferencesDLA-2647-1, DSA-4909-1
NVD severitymedium
Debian Bugs987742

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)stretch1:9.10.3.dfsg.P4-12.3+deb9u6vulnerable
stretch (security)1:9.10.3.dfsg.P4-12.3+deb9u9fixed
buster1:9.11.5.P4+dfsg-5.1+deb10u3vulnerable
buster (security)1:9.11.5.P4+dfsg-5.1+deb10u5fixed
bullseye, sid1:9.16.15-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9sourcestretch1:9.10.3.dfsg.P4-12.3+deb9u9DLA-2647-1
bind9sourcebuster1:9.11.5.P4+dfsg-5.1+deb10u5DSA-4909-1
bind9source(unstable)1:9.16.15-1987742

Notes

https://kb.isc.org/docs/cve-2021-25215
https://gitlab.isc.org/isc-projects/bind9/commit/dde958717c9bfdc8679764c045c226e3a1468334 (v9_16_15)

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