Out-of-bounds Read Affecting libxfont package, versions <1:2.0.1-4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-LIBXFONT-313120
- published11 Oct 2017
- disclosed11 Oct 2017
Introduced: 11 Oct 2017
CVE-2017-13722 (opens in a new tab)How to fix?
Upgrade Debian:unstable libxfont to version 1:2.0.1-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxfont package and not the libxfont package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
In 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.
References
- https://security-tracker.debian.org/tracker/CVE-2017-13722
- http://www.debian.org/security/2017/dsa-3995
- https://security.gentoo.org/glsa/201711-08
- https://bugzilla.suse.com/show_bug.cgi?id=1049692
- https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd
- https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2
- https://bugzilla.redhat.com/show_bug.cgi?id=1500693
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-13722