CVE-2022-38178

NameCVE-2022-38178
DescriptionBy spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3138-1, DSA-5235-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bind9 (PTS)jessie, jessie (lts)1:9.9.5.dfsg-9+deb8u31fixed
stretch (security)1:9.10.3.dfsg.P4-12.3+deb9u12fixed
stretch (lts), stretch1:9.10.3.dfsg.P4-12.3+deb9u17fixed
buster, buster (lts)1:9.11.5.P4+dfsg-5.1+deb10u13fixed
buster (security)1:9.11.5.P4+dfsg-5.1+deb10u11fixed
bullseye1:9.16.50-1~deb11u2fixed
bullseye (security)1:9.16.50-1~deb11u1fixed
bookworm (security), bookworm1:9.18.28-1~deb12u2fixed
trixie1:9.20.4-2fixed
sid1:9.20.4-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bind9sourcejessie(not affected)
bind9sourcestretch(not affected)
bind9sourcebuster1:9.11.5.P4+dfsg-5.1+deb10u8DLA-3138-1
bind9sourcebullseye1:9.16.33-1~deb11u1DSA-5235-1
bind9source(unstable)1:9.18.7-1

Notes

https://kb.isc.org/docs/cve-2022-38178
Fixed by: https://gitlab.isc.org/isc-projects/bind9/-/commit/7c0028cfad2ae5fdf82c4d02d3b8b3a1e96dc6ec (v9_18_7)
Fixed by: https://gitlab.isc.org/isc-projects/bind9/-/commit/1af23378ebb11da2eb0f412e4563d6c4165fbd3d (v9_16_33)
[stretch] - bind9 <not-affected> (Ed25519 support introduced later)
[jessie] - bind9 <not-affected> (Ed25519 support introduced later)

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