CVE-2018-15859
MEDIUM5.5EPSS 0.08%Published: 8/25/2018Modified: 12/5/2025
Also known as:ALPINE-CVE-2018-15859DEBIAN-CVE-2018-15859
Description
Unchecked NULL pointer usage when parsing invalid atoms 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, because lookup failures are mishandled.
Affected packages (3)
- Alpine/xkbcompfrom 0, < 1.5.0-r0
- Debian/libxkbcommonfrom 0, < 0.8.2-1
- Debian/x11-xkb-utilsfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |