CVE-2017-13720
HIGH7.1EPSS 0.06%libxfont - security update
Published: 10/11/2017Modified: 4/28/2026
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 packages (3)
- Debian/libxfontfrom 0, < 1:2.0.1-4
- Debian/libxfontfrom 0, < 1:1.4.5-5+deb7u1
- Debian/libxfontfrom 0, < 1:1.5.1-1+deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |