DescriptionThe gdPngReadData function in libgd 2.0.34 allows user-assisted attackers to cause a denial of service (CPU consumption) via a crafted PNG image with truncated data, which causes an infinite loop in the png_read_info function in libpng.
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)
NVD severitymedium
Debian Bugs425584, 426099, 426100

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libgd2 (PTS)stretch2.2.4-2+deb9u5fixed
stretch (security)2.2.4-2+deb9u4fixed
bookworm, sid, bullseye2.3.0-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libgd2source(unstable)2.0.35.dfsg-1low425584, 426099, 426100


[etch] - libgd <no-dsa> (Minor issue)
[sarge] - libgd <no-dsa> (Minor issue)
[etch] - libgd2 <no-dsa> (Minor issue)
[sarge] - libgd2 <no-dsa> (Minor issue)

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