DescriptionMuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs991402

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mupdf (PTS)buster1.14.0+ds1-4+deb10u3vulnerable
buster (security)1.14.0+ds1-4+deb10u2vulnerable
bullseye (security)1.17.0+ds1-1.3~deb11u1vulnerable
sid, trixie1.23.10+ds1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mupdfsourcestretch(not affected)


[buster] - mupdf <no-dsa> (Minor issue; can be fixed via point release)
[stretch] - mupdf <not-affected> (Vulnerable code not present);h=f5712c9949d026e4b891b25837edd2edc166151f
On Stretch, an earlier version of the code exits early instead of crashing.

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