CVE-2018-15861

medium

Description

Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure.

References

Advisories

https://usn.ubuntu.com/3786-2/

https://usn.ubuntu.com/3786-1/

https://security.gentoo.org/glsa/201810-05

https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html

https://github.com/xkbcommon/libxkbcommon/commit/38e1766bc6e20108948aec8a0b222a4bad0254e9

https://access.redhat.com/errata/RHSA-2019:2079

Details

Source: Mitre, NVD

Published: 2018-08-25

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.00061