CVE-2018-15853 Information

Description

Endless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1 which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation.

CVSS Vector

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

Reference

https://access.redhat.com/errata/RHSA-2019:2079 https://github.com/xkbcommon/libxkbcommon/commit/1f9d1248c07cda8aaff762429c0dce146de8632a https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html https://security.gentoo.org/glsa/201810-05 https://usn.ubuntu.com/3786-1/ https://usn.ubuntu.com/3786-2/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5