Stack-based buffer overflow in libXfont - CVE-2013-6462
Published: January 9, 2014 / Updated: July 28, 2020
Vulnerability identifier: #VU32591
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2013-6462
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libXfont
libXfont
Software vendor:
X.org
X.org
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the bdfReadCharacters function in bitmap/bdfread.c when processing a long string in a character name in a BDF font file. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Update to version 1.4.7.
External links
- http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=4d024ac10f964f6bd372ae0dd14f02772a6e5f63
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00050.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00052.html
- http://lists.x.org/archives/xorg-announce/2014-January/002389.html
- http://osvdb.org/101842
- http://rhn.redhat.com/errata/RHSA-2014-0018.html
- http://seclists.org/oss-sec/2014/q1/33
- http://secunia.com/advisories/56240
- http://secunia.com/advisories/56336
- http://secunia.com/advisories/56357
- http://secunia.com/advisories/56371
- http://www.debian.org/security/2014/dsa-2838
- http://www.oracle.com/technetwork/topics/security/cpuapr2014-1972952.html
- http://www.securityfocus.com/bid/64694
- http://www.ubuntu.com/usn/USN-2078-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/90123