79886 : FreeType src/bdf/bdflib.c Array Index BDF Font Glyph Information Handling Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
4	660	about 1 year ago	5 months ago	6 times	100%

Timeline

Disclosure Date
2012-02-28

Description

FreeType contains an integer overflow condition in the src/bdf/bdflib.c. The issue is triggered as user-supplied input is not properly validated when handling BDF font glyph information. With a specially crafted Font Glyph, a context-dependent attacker can cause data to be read from an arbitrary memory location, resulting in a loss of availability or potential code execution.

Classification

Location: Local / Remote, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Private
Disclosure: Vendor Verified

Solution

The FreeType Project has released a patch in the GIT repository to address this vulnerability. This patch will be included in version 2.4.9. Check the vendor advisory or solution in the references section.

Products

The FreeType Project

Freetype

2.4.8

References

Security Tracker: 1026765
CVE ID: 2012-1139 (see also: NVD)
Secunia Advisory ID: 48268 48508 48758 48797 48805 48822 48918 48951 48973 49721 50586
Related OSVDB ID: 79872 79873 79874 79875 79876 79877 79878 79880 79881 79882 79883 79884 79885 79887 79888 79889 79890 79891
Vendor Specific Solution URL: http://freetype.sourceforge.net/index2.html
http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=6ac022dc750d95296a6f731b9594f2e751d997fa
Vendor Specific News/Changelog Entry: http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00020.html
http://security.gentoo.org/glsa/glsa-201204-04.xml
http://slackware.com/security/viewer.php?l=slackware-security&y=2012&m=slackware-security.499108
http://www.mozilla.org/security/announce/2012/mfsa2012-21.html
http://www.ubuntu.com/usn/usn-1403-1
https://bugzilla.redhat.com/show_bug.cgi?id=800598
Vendor Specific Advisory URL: http://support.apple.com/kb/HT5503
https://savannah.nongnu.org/bugs/?35656
Mail List Post: http://www.openwall.com/lists/oss-security/2012/03/06/16
RedHat RHSA: RHSA-2012:0467

Credit

Matthew 'j00ru' Jurczyk - Google Security Team

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2012-04-25 | Disagree?

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