Vulnerability CVE-2009-0749
Published: 2009-03-02   Modified: 2012-02-13

Description:
Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.

Type:

CWE-399

 (Resource Management Errors)

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
Cosmin truta -> Optipng 

 References:
http://www.vupen.com/english/advisories/2009/0510
http://www.securityfocus.com/bid/33873
http://optipng.sourceforge.net
http://xforce.iss.net/xforce/xfdb/48879
http://www.openwall.com/lists/oss-security/2009/02/25/4
http://www.openwall.com/lists/oss-security/2009/02/24/2
http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml
http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913
http://secunia.com/advisories/35685
http://secunia.com/advisories/34259
http://secunia.com/advisories/34201
http://secunia.com/advisories/34035
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
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