High severity7.1NVD Advisory· Published Oct 11, 2017· Updated May 13, 2026
CVE-2017-13720
CVE-2017-13720
Description
In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.
Affected products
3Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- cgit.freedesktop.org/xorg/lib/libXfont/commit/nvdPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
- bugzilla.suse.com/show_bug.cginvdIssue TrackingThird Party Advisory
- www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2nvdVendor Advisory
- www.debian.org/security/2017/dsa-3995nvd
- security.gentoo.org/glsa/201711-08nvd
News mentions
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