High severity7.1NVD Advisory· Published Oct 11, 2017· Updated Jun 17, 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.
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Affected products
17- osv-coords13 versionspkg:rpm/opensuse/libXfont&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/libXfont&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/xorg-x11-libs&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/xorg-x11-libs&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/xorg-x11-libs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4
< 1.5.4-2.18+ 12 more
- (no CPE)range: < 1.5.4-2.18
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 1.5.1-11.3.12
- (no CPE)range: < 7.4-8.26.50.5.3
- (no CPE)range: < 7.4-8.26.50.5.3
- (no CPE)range: < 7.4-8.26.50.5.3
Patches
Vulnerability mechanics
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
0No linked articles in our index yet.