DescriptionThe woff_open_font function in sfnt/sfobjs.c in FreeType before 2.5.4 proceeds with offset+length calculations without restricting length values, which allows remote attackers to cause a denial of service (integer overflow and heap-based buffer overflow) or possibly have unspecified other impact via a crafted Web Open Font Format (WOFF) file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs777656

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
freetype (PTS)buster2.9.1-3+deb10u3fixed
buster (security)2.9.1-3+deb10u2fixed
trixie, sid2.13.2+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
freetypesourcesqueeze(not affected)
freetypesourcewheezy(not affected)


[wheezy] - freetype <not-affected> (Vulnerable code not present)
[squeeze] - freetype <not-affected> (Vulnerable code not present)

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