CVE-2017-13722 Information

Description

In the pcfGetProperties function in bitmap/pcfread.c in libXfont through 1.5.2 and 2.x before 2.0.2 a missing boundary check (for PCF files) could be used by local attackers authenticated to an Xserver for a buffer over-read for information disclosure or a crash of the X server.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Reference

http://www.debian.org/security/2017/dsa-3995 https://bugzilla.redhat.com/show_bug.cgi?id=1500693 https://bugzilla.suse.com/show_bug.cgi?id=1049692 https://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=672bb944311392e2415b39c0d63b1e1902905bcd https://security.gentoo.org/glsa/201711-08 https://www.x.org/releases/individual/lib/libXfont2-2.0.2.tar.bz2

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.1