Integer Overflow or Wraparound Affecting libx11 package, versions <2:1.6.2-1ubuntu2.1+esm1
Snyk CVSS
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-UBUNTU1404-LIBX11-609973
- published 25 Aug 2020
- disclosed 11 Sep 2020
Introduced: 25 Aug 2020
CVE-2020-14363 Open this link in a new tabHow to fix?
Upgrade Ubuntu:14.04
libx11
to version 2:1.6.2-1ubuntu2.1+esm1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libx11
package and not the libx11
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:14.04
relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-14363
- https://security-tracker.debian.org/tracker/CVE-2020-14363
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14363
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/
- 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://usn.ubuntu.com/4487-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7AVXCQOSCAPKYYHFIJAZ6E2C7LJBTLXF/