VDB

ALPINE-CVE-2018-15861

ALPINE-CVE-2018-15861 PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS v3.0
5.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.21xkbcomp1.4.7-r0, 0, 1.0.5-r0
Alpine:v3.23xkbcomp1.4.7-r0, 1.4.6-r1, 1.4.6-r0
Alpine:v3.20xkbcomp1.0.5-r0, 1.4.7-r0, 1.4.6-r1
Alpine:v3.18xkbcomp1.4.7-r0, 1.4.6-r1, 1.4.6-r0
Alpine:v3.19xkbcomp1.4.7-r0, 0, 1.0.5-r0
Alpine:v3.22xkbcomp0, 1.4.7-r0, 1.4.6-r1

Timeline

  • Aug 25, 2018 CVE Published
  • Dec 5, 2025 CVE Updated
  • Apr 30, 2026 Distribution Patch
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