CVE-2018-14600

An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.

Published: Aug 24, 2018
Updated: Apr 13, 2023
CVE: CVE-2018-14600
Severity: Critical
Exploit:

CVSS v3:

Severity: Critical
Score: 9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

Severity: High
Score: 7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P

CWEs:

CWE-787

Affected Software
References

Software	From	Fixed in
x.org / libx11	-	1.6.5.x
debian / debian_linux	8.0	8.0.x
canonical / ubuntu_linux	16.04	16.04.x
canonical / ubuntu_linux	14.04	14.04.x
canonical / ubuntu_linux	12.04	12.04.x
canonical / ubuntu_linux	18.04	18.04.x

http://www.openwall.com/lists/oss-security/2018/08/21/6
http://www.securityfocus.com/bid/105177
http://www.securitytracker.com/id/1041543
https://access.redhat.com/errata/RHSA-2019:2079
https://bugzilla.suse.com/show_bug.cgi?id=1102068
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=dbf72805fd9d7b1846fe9a11b46f3994bfc27fea
https://lists.debian.org/debian-lts-announce/2018/08/msg00030.html
https://lists.x.org/archives/xorg-announce/2018-August/002916.html
https://security.gentoo.org/glsa/201811-01
https://usn.ubuntu.com/3758-1/
https://usn.ubuntu.com/3758-2/

Vulnerability Database

289,689

CVE-2018-14600