CVE-2018-14598

libX11: Crash on invalid reply in XListExtensions in ListExt.c

Published Aug 24, 2018 CVSS 3.0 · 7.5 High EPSS 4.2% KEV · Not listed
Description
An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1482-1 libx11 security update
EUVD EUVD EUVD-2018-6505 An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).
Ubuntu USN Ubuntu USN USN-3758-1 libx11 vulnerabilities
Ubuntu USN Ubuntu USN USN-3758-2 libx11 vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 5, 2024, 9:29 AM
Reserved
Jul 26, 2018, 12:00 AM
Status
Modified
Published
Aug 24, 2018, 7:29 PM
Modified
Jun 17, 2026, 1:41 AM
Severity
Moderate
Public date
Aug 21, 2018, 12:00 AM