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CVE-2020-14363

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4487-2
Posted Sep 8, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4487-2 - USN-4487-1 fixed several vulnerabilities in libx11. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM. Todd Carson discovered that libx11 incorrectly handled certain memory operations. A local attacker could possibly use this issue to escalate privileges. Various other issues were also addressed.

tags | advisory, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-14344, CVE-2020-14363
MD5 | 7b5ef11330385584e46af64155d4486c
Ubuntu Security Notice USN-4487-1
Posted Sep 2, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4487-1 - Todd Carson discovered that libx11 incorrectly handled certain memory operations. A local attacker could possibly use this issue to escalate privileges. Jayden Rivers discovered that libx11 incorrectly handled locales. A local attacker could possibly use this issue to escalate privileges.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2020-14344, CVE-2020-14363
MD5 | 24979d028c4f9afba0853484ef80f628
Gentoo Linux Security Advisory 202008-18
Posted Aug 28, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202008-18 - Multiple vulnerabilities have been found in X.org X11 library, the worst of which could result in the arbitrary execution of code. Versions less than 1.6.12 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2020-14344, CVE-2020-14363
MD5 | d0ab1e41ff7ebed3a58b9501ce1fcea9
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