CVE-2020-14363

CVSS 7.8 HIGHEPSS 0.6%CWE-190 CWE-416

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.8EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

11 Sep 2020Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

The X11 Project · libX11

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References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363 https://github.com/Ruia-ruia/Exploits/blob/master/DFX11details.txt https://github.com/Ruia-ruia/Exploits/blob/master/x11doublefree.sh https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/https://lists.x.org/archives/xorg-announce/2020-August/003056.html https://usn.ubuntu.com/4487-2/