CVE-2018-15861
5.5
MEDIUM
CVSS 3.1
EPSS 0.07%
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.
How to fix CVE-2018-15861
To remediate CVE-2018-15861, upgrade the affected package to a fixed version below.
- Alpine/xkbcomp—upgrade to 1.5.0-r0 or later
- —upgrade to 0.8.2-1 or later
- —no fix listed
Is CVE-2018-15861 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.5.0-r0
- from 0, < 0.8.2-1
- from 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 |