CVE-2018-14599

CRITICAL

libX11 < 1.6.5 - Off-by-one Error in XListExtensions

Title source: llm
STIX 2.1

Description

An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact.

References (12)

Core 12
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3758-2/
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.suse.com/show_bug.cgi?id=1102062
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201811-01
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105177
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2018/08/21/6
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041543
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/08/msg00030.html
Third Party Advisory mailing-list x_refsource_mlist
https://lists.x.org/archives/xorg-announce/2018-August/002916.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3758-1/
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2079

Scores

CVSS v3 9.8
EPSS 0.0499
EPSS Percentile 91.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-193
Status published
Products (10)
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
fedoraproject/fedora 28
redhat/enterprise_linux_desktop 7.0
redhat/enterprise_linux_server 7.0
redhat/enterprise_linux_workstation 7.0
x.org/libx11 < 1.6.5
Published Aug 24, 2018
Tracked Since Feb 18, 2026