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.
Published: 2018-08-24
Score: 8.1 High
EPSS: 11.0% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-1482-1 libx11 security update
EUVD EUVD EUVD-2018-6507 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.
Ubuntu USN Ubuntu USN USN-3758-1 libx11 vulnerabilities
Ubuntu USN Ubuntu USN USN-3758-2 libx11 vulnerabilities
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.09426}

epss

{'score': 0.08595}


Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Redhat Enterprise Linux
X.org Libx11
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T09:29:51.697Z

Reserved: 2018-07-26T00:00:00.000Z

Link: CVE-2018-14600

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-08-24T19:29:01.567

Modified: 2024-11-21T03:49:23.207

Link: CVE-2018-14600

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-08-21T00:00:00Z

Links: CVE-2018-14600 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses