CVE-2018-15858

Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file.

• CWE-476

• https://github.com/xkbcommon/libxkbcommon/commit/badb428e63387140720f22486b3acbd3d738859fPatch, Third Party Advisory
• https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlMailing List, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201810-05Third Party Advisory
• https://usn.ubuntu.com/3786-1/Third Party Advisory
• https://usn.ubuntu.com/3786-2/Third Party Advisory
• https://github.com/xkbcommon/libxkbcommon/commit/badb428e63387140720f22486b3acbd3d738859fPatch, Third Party Advisory
• https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.htmlMailing List, Patch, Third Party Advisory
• https://security.gentoo.org/glsa/201810-05Third Party Advisory
• https://usn.ubuntu.com/3786-1/Third Party Advisory
• https://usn.ubuntu.com/3786-2/Third Party Advisory

Published

Aug 25, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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