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CVE-2018-14600

CRITICAL
9.8
CVSS Severity Score
EPSS Score0.0630%
EPSS Percentile26.05th
PublishedAug 24, 2018
Last ModifiedNov 21, 2024

Vulnerability Description

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.

Affected Platforms (CPE)

📦
X.org

Libx11

<= 1.6.5
💻
Canonical

Ubuntu Linux

= 12.04
💻
Canonical

Ubuntu Linux

= 14.04
💻
Canonical

Ubuntu Linux

= 16.04
💻
Canonical

Ubuntu Linux

= 18.04
💻
Debian

Debian Linux

= 8.0

References & Advisories

🔗 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

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