CVE-2021-45909

NameCVE-2021-45909
DescriptionAn issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.
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-2937-1
Debian Bugs1002668

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gif2apng (PTS)stretch (security)1.9+srconly-2+deb9u2fixed
buster, stretch1.9+srconly-2vulnerable
bullseye1.9+srconly-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gif2apngsourcestretch1.9+srconly-2+deb9u2DLA-2937-1
gif2apngsource(unstable)(unfixed)1002668

Notes

[bullseye] - gif2apng <no-dsa> (Minor issue)
[buster] - gif2apng <no-dsa> (Minor issue)

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