vulnerability
Amazon Linux AMI 2: CVE-2018-15862: Security patch for xorg-x11-server (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | Aug 25, 2018 | Jun 4, 2020 | May 20, 2026 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Aug 25, 2018
Added
Jun 4, 2020
Modified
May 20, 2026
Description
Unchecked NULL pointer usage in LookupModMask 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 with invalid virtual modifiers.
Solutions
amazon-linux-ami-2-upgrade-xorg-x11-server-commonamazon-linux-ami-2-upgrade-xorg-x11-server-debuginfoamazon-linux-ami-2-upgrade-xorg-x11-server-develamazon-linux-ami-2-upgrade-xorg-x11-server-sourceamazon-linux-ami-2-upgrade-xorg-x11-server-xdmxamazon-linux-ami-2-upgrade-xorg-x11-server-xephyramazon-linux-ami-2-upgrade-xorg-x11-server-xnestamazon-linux-ami-2-upgrade-xorg-x11-server-xorgamazon-linux-ami-2-upgrade-xorg-x11-server-xvfbamazon-linux-ami-2-upgrade-xorg-x11-server-xwayland
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.