Input validation error in libXfont - CVE-2014-0209
Published: May 15, 2014 / Updated: August 4, 2020
Vulnerability identifier: #VU33847
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-0209
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 read and manipulate data.
Multiple integer overflows in the (1) FontFileAddEntry and (2) lexAlias functions in X.Org libXfont before 1.4.8 and 1.4.9x before 1.4.99.901 might allow local users to gain privileges by adding a directory with a large fonts.dir or fonts.alias file to the font path, which triggers a heap-based buffer overflow, related to metadata.
Affected software
libXfont
Gentoo Linux
Amazon Linux AMI
libxfont (Alpine package)
Gentoo Linux
Amazon Linux AMI
libxfont (Alpine package)
How to mitigate CVE-2014-0209
Install update from vendor's website.
libXfont - update to 1.4.8
libxfont (Alpine package) - update to 1.4.7-r1
libxfont (Alpine package) - update to 1.4.7-r1
External References
- http://advisories.mageia.org/MGASA-2014-0278.html
- http://lists.opensuse.org/opensuse-updates/2014-05/msg00073.html
- http://lists.x.org/archives/xorg-announce/2014-May/002431.html
- http://rhn.redhat.com/errata/RHSA-2014-1893.html
- http://seclists.org/fulldisclosure/2014/Dec/23
- http://secunia.com/advisories/59154
- http://www.debian.org/security/2014/dsa-2927
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:145
- http://www.oracle.com/technetwork/topics/security/cpujul2014-1972956.html
- http://www.securityfocus.com/archive/1/534161/100/0/threaded
- http://www.securityfocus.com/bid/67382
- http://www.ubuntu.com/usn/USN-2211-1
- http://www.vmware.com/security/advisories/VMSA-2014-0012.html