CVE-2018-14600

Summary

CVECVE-2018-14600
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-08-24 19:29:00 UTC
Updated2019-08-06 17:15:00 UTC
DescriptionAn 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.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application X.org Libx11 All All All All

References

ReferenceSourceLinkTags
oss-security - X.Org security advisory: August 21, 2018 MLIST www.openwall.com Mailing List, Third Party Advisory
[SECURITY] [DLA 1482-1] libx11 security update MLIST lists.debian.org Mailing List, Third Party Advisory
Bug 1102068 – VUL-0: CVE-2018-14600: libX11,xorg-x11-libX11, xorg-x11: out of boundary write in XListExtensions CONFIRM bugzilla.suse.com Issue Tracking, Patch, Third Party Advisory
X.org libX11 Bugs Let Remote Users Deny Service and Potentially Execute Arbitrary Code - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
Malformed Request BID www.securityfocus.com Third Party Advisory, VDB Entry
[ANNOUNCE] libX11 1.6.6 MLIST lists.x.org Third Party Advisory
xorg/lib/libX11 - libX11 GIT Repository (mirrored from https://gitlab.freedesktop.org/xorg/lib/libx11) CONFIRM cgit.freedesktop.org Patch, Third Party Advisory
USN-3758-1: libx11 vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
USN-3758-2: libx11 vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com Third Party Advisory
X.Org X11 library: Multiple vulnerabilities (GLSA 201811-01) — Gentoo security GENTOO security.gentoo.org Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 377269 Alibaba Cloud Linux Security Update for xorg (ALINUX2-SA-2019:0076)
  • 500336 Alpine Linux Security Update for libx11
  • 504099 Alpine Linux Security Update for libx11
  • 671128 EulerOS Security Update for libX11 (EulerOS-SA-2019-2624)
  • 710312 Gentoo Linux X.Org X11 library Multiple Vulnerabilities (GLSA 201811-01)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report