CVE Vulnerabilities

CVE-2018-14599

Off-by-one Error

Published: Aug 24, 2018 | Modified: Nov 21, 2024
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.1 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
root.io logo minimus.io logo echo.ai logo

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.

Weakness

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

Affected Software

NameVendorStart VersionEnd Version
Libx11X.org*1.6.5 (including)
Red Hat Enterprise Linux 7RedHatgdm-1:3.28.2-16.el7*
Red Hat Enterprise Linux 7RedHatlibX11-0:1.6.7-2.el7*
Red Hat Enterprise Linux 7RedHatlibxkbcommon-0:0.7.1-3.el7*
Red Hat Enterprise Linux 7RedHatmesa-libGLw-0:8.0.0-5.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-ati-0:19.0.1-2.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-vesa-0:2.4.0-3.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-drv-wacom-0:0.36.1-3.el7*
Red Hat Enterprise Linux 7RedHatxorg-x11-server-0:1.20.4-7.el7*
Libx11Ubuntubionic*
Libx11Ubuntudevel*
Libx11Ubuntuesm-infra-legacy/trusty*
Libx11Ubuntuesm-infra/bionic*
Libx11Ubuntuesm-infra/xenial*
Libx11Ubuntutrusty*
Libx11Ubuntutrusty/esm*
Libx11Ubuntuupstream*
Libx11Ubuntuxenial*

Potential Mitigations

References