CVE-2022-2906

Name	CVE-2022-2906
Description	An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the potential to deny service.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

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
bind9	source	jessie	(not affected)
bind9	source	stretch	(not affected)
bind9	source	buster	(not affected)
bind9	source	bullseye	(not affected)
bind9	source	(unstable)	1:9.18.7-1

Notes

[bullseye] - bind9 <not-affected> (Vulnerable code introduced later)
[buster] - bind9 <not-affected> (Vulnerable code introduced later)
https://kb.isc.org/docs/cve-2022-2906
Introduced after: https://gitlab.isc.org/isc-projects/bind9/-/commit/e18777c7582d54d227714882e9e79746ce48e002 (v9_17_20)
Fixed by: https://gitlab.isc.org/isc-projects/bind9/-/commit/73df5c80538970ee1fbc4fe3348109bdc281e197 (v9_18_7)
[stretch] - bind9 <not-affected> (Vulnerable code introduced later)
[jessie] - bind9 <not-affected> (Vulnerable code introduced later)