CVE-2020-14363
CVE-2020-14363
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 7.8 · High · EPSS 0.6% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
libx11
- Versions
- 1.6.12: Affected
No fix published
libx11 Debian:12
- Affected ranges
- ECOSYSTEM: < 2:1.6.12-1
Update to 2:1.6.12-1
libx11 Debian:13
- Affected ranges
- ECOSYSTEM: < 2:1.6.12-1
Update to 2:1.6.12-1
libx11 Debian:14
- Affected ranges
- ECOSYSTEM: < 2:1.6.12-1
Update to 2:1.6.12-1
libx11 Ubuntu:Pro:14.04:LTS
- Versions
- 2:1.6.1-1ubuntu1
- 2:1.6.1-1ubuntu2
- 2:1.6.2-1ubuntu1
- 2:1.6.2-1ubuntu2
- 2:1.6.2-1ubuntu2.1
- Affected ranges
- ECOSYSTEM: < 2:1.6.2-1ubuntu2.1+esm1
Update to 2:1.6.2-1ubuntu2.1+esm1
libx11 Ubuntu:16.04:LTS
- Versions
- 2:1.6.3-1ubuntu2
- 2:1.6.3-1ubuntu2.1
- Affected ranges
- ECOSYSTEM: < 2:1.6.3-1ubuntu2.2
Update to 2:1.6.3-1ubuntu2.2
libx11 Ubuntu:18.04:LTS
- Versions
- 2:1.6.4-3
- 2:1.6.4-3ubuntu0.1
- 2:1.6.4-3ubuntu0.2
- Affected ranges
- ECOSYSTEM: < 2:1.6.4-3ubuntu0.3
Update to 2:1.6.4-3ubuntu0.3
libx11 Ubuntu:20.04:LTS
- Versions
- 2:1.6.8-1
- 2:1.6.9-2
- 2:1.6.9-2ubuntu1
- Affected ranges
- ECOSYSTEM: < 2:1.6.9-2ubuntu1.1
Update to 2:1.6.9-2ubuntu1.1
Original sources
- 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/
- https://nvd.nist.gov/vuln/detail/CVE-2020-14363