CVE-2021-31292

NameCVE-2021-31292
DescriptionAn integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.
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-2750-1, DSA-4958-1, ELA-479-1
Debian Bugs991706

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
exiv2 (PTS)jessie, jessie (lts)0.24-4.1+deb8u7fixed
stretch (security)0.25-3.1+deb9u3fixed
stretch (lts), stretch0.25-3.1+deb9u4fixed
buster0.25-4+deb10u2fixed
buster (security)0.25-4+deb10u4fixed
bullseye (security), bullseye0.27.3-3+deb11u1fixed
sid, bookworm0.27.5-4fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
exiv2sourcejessie0.24-4.1+deb8u6ELA-479-1
exiv2sourcestretch0.25-3.1+deb9u3DLA-2750-1
exiv2sourcebuster0.25-4+deb10u2DSA-4958-1
exiv2sourcebullseye0.27.3-3+deb11u1
exiv2source(unstable)0.27.3-3.1991706

Notes

https://github.com/Exiv2/exiv2/issues/1530
https://github.com/Exiv2/exiv2/commit/9b7a19f957af53304655ed1efe32253a1b11a8d0
In older releases affected code is in src/crwimage.cpp
This is a duplicate of CVE-2021-29458, but mitre finds the evidence unconvincing.

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