DescriptionHeap-based buffer overflow in the alloc_segs function in lib/dbm/src/hash.c in Mozilla Network Security Services (NSS) allows context-dependent attackers to have unspecified impact using a crafted cert8.db file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs873256

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nss (PTS)jessie, jessie (lts)2:3.26-1+debu8u17vulnerable
stretch (security)2:3.26.2-1.1+deb9u5vulnerable
stretch (lts), stretch2:3.26.2-1.1+deb9u6vulnerable
buster (security)2:3.42.1-1+deb10u6vulnerable
bullseye (security), bullseye2:3.61-1+deb11u3vulnerable
sid, trixie2:3.92-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


Issues triggered by crafted DBM databases, which would
require local user access to a machine running NSS and
crafting the local DBM files.

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