Vulnerability CVE-2013-6462
Published: 2014-01-09   Modified: 2014-01-10

Description:
Stack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string in a character name in a BDF font file.

See advisories in our WLB2 database:
Topic
Author
Date
High
libXfont Stack Buffer Overflow
Alan Coopersmith
10.01.2014

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
X -> Libxfont 

 References:
http://cgit.freedesktop.org/xorg/lib/libXfont/commit/?id=4d024ac10f964f6bd372ae0dd14f02772a6e5f63
http://xforce.iss.net/xforce/xfdb/90123
http://www.ubuntu.com/usn/USN-2078-1
http://www.securityfocus.com/bid/64694
http://www.oracle.com/technetwork/topics/security/cpuapr2014-1972952.html
http://www.debian.org/security/2014/dsa-2838
http://secunia.com/advisories/56371
http://secunia.com/advisories/56357
http://secunia.com/advisories/56336
http://secunia.com/advisories/56240
http://seclists.org/oss-sec/2014/q1/33
http://rhn.redhat.com/errata/RHSA-2014-0018.html
http://osvdb.org/101842
http://lists.x.org/archives/xorg-announce/2014-January/002389.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00052.html
http://lists.opensuse.org/opensuse-updates/2014-01/msg00050.html
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