CVE-2017-13720 | BDVDB-2026-91447 Detail
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.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://www.debian.org/security/2017/dsa-3995
- https://bugzilla.redhat.com/show_bug.cgi?id=1500690
- https://bugzilla.suse.com/show_bug.cgi?id=1054285
- https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2
- https://security.gentoo.org/glsa/201711-08
- https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.