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Status published
High
CVE-2020-14363
An integer overflow vulnerability leading to a double-free was found...
Vulnerability Description
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt
- https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh
- https://lists.x.org/archives/xorg-announce/2020-August/003056.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363
- https://usn.ubuntu.com/4487-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
More from The X11 Project
View All →Affected Vendor
The X11 Project
View all reports →Affected Software
libX11
Vulnerable Versions:
1.6.12
Timeline
Official Publish:
September 11th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H