CVEvulnerability
CVE-2017-13720
7.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-10-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 7.1 HIGH — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- CVSS 2.0 ([email protected])
- 3.6 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:P
- Weaknesses
- CWE-125
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 configurations
• x.org libxfont (<= 1.5.2)
• x.org libxfont 2.0.0
• x.org libxfont 2.0.1
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- http://www.debian.org/security/2017/dsa-3995 www.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=1500690 Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1054285 Issue Tracking, Third Party Advisory
- https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608 Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201711-08 security.gentoo.org
- https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2 Vendor Advisory
- http://www.debian.org/security/2017/dsa-3995 www.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=1500690 Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1054285 Issue Tracking, Third Party Advisory
- https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=d1e670a4a8704b8708e493ab6155589bcd570608 Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201711-08 security.gentoo.org
- https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2 Vendor Advisory