Input validation error - CVE-2013-6424
Published: January 18, 2014 / Updated: August 4, 2020
Vulnerability identifier: #VU33856
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-6424
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.
Affected software
Amazon Linux AMI
Gentoo Linux
xorg-server (Alpine package)
Gentoo Linux
xorg-server (Alpine package)
How to mitigate CVE-2013-6424
Install update from vendor's website.
xorg-server (Alpine package) - update to 1.14.4-r1
External References
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00127.html
- http://lists.x.org/archives/xorg-devel/2013-October/037996.html
- http://rhn.redhat.com/errata/RHSA-2013-1868.html
- http://www.debian.org/security/2013/dsa-2822
- http://www.openwall.com/lists/oss-security/2013/12/03/8
- http://www.openwall.com/lists/oss-security/2013/12/04/8
- http://www.ubuntu.com/usn/USN-2500-1
- https://bugs.freedesktop.org/show_bug.cgi?id=67484
- https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1197921
- https://security.gentoo.org/glsa/201701-64
- https://security.gentoo.org/glsa/201710-30