NULL Pointer Dereference Affecting xkbcomp package, versions <1.4.7-160000.3.1


Severity

Recommended
0.0
low
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.54% (45th percentile)

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  • Snyk IDSNYK-SLES1600-XKBCOMP-15202342
  • published4 Feb 2026
  • disclosed28 Jan 2026

Introduced: 28 Jan 2026

CVE-2018-15861  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 xkbcomp to version 1.4.7-160000.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xkbcomp package and not the xkbcomp package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1