Descriptiongifread.c in gif2png, as used in OptiPNG before 0.7.6, allows remote attackers to cause a denial of service (uninitialized memory read) via a crafted GIF file.
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)
Debian Bugs801700

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
optipng (PTS)buster, bullseye0.7.7-1fixed
bookworm, sid0.7.7-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


Not a security flaw as the under-read does not depend on input

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