CVE-2017-13722

NameCVE-2017-13722
DescriptionIn the pcfGetProperties function in bitmap/pcfread.c in libXfont through 1.5.2 and 2.x before 2.0.2, a missing boundary check (for PCF files) could be used by local attackers authenticated to an Xserver for a buffer over-read, for information disclosure or a crash of the X server.
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-1126-1, DSA-3995-1
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libxfont (PTS)wheezy1:1.4.5-5vulnerable
wheezy (security)1:1.4.5-5+deb7u1fixed
jessie (security), jessie1:1.5.1-1+deb8u1fixed
stretch (security), stretch1:2.0.1-3+deb9u1fixed
buster, sid1:2.0.3-1fixed
libxfont1 (PTS)stretch1:1.5.2-4vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libxfontsource(unstable)1:2.0.1-4low
libxfontsourcejessie1:1.5.1-1+deb8u1lowDSA-3995-1
libxfontsourcestretch1:2.0.1-3+deb9u1lowDSA-3995-1
libxfontsourcewheezy1:1.4.5-5+deb7u1lowDLA-1126-1
libxfont1source(unstable)(unfixed)unimportant

Notes

Fixed by: https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd
libxfont1 is only used by xfonts-utils, no security impact

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