Vulnerability CVE-2011-0408
Published: 2011-01-18   Modified: 2012-02-13

Description:
pngrtran.c in libpng 1.5.x before 1.5.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted palette-based PNG image that triggers a buffer overflow, related to the png_do_expand_palette function, the png_do_rgb_to_gray function, and an integer underflow. NOTE: some of these details are obtained from third party information.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Libpng \"png_set_rgb_to_gray()\" Transform Buffer Overflow Vulnerability
Glenn Randers-Pe...
19.01.2011

Type:

CWE-119

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

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libpng -> Libpng 

 References:
http://www.kb.cert.org/vuls/id/643140
http://xforce.iss.net/xforce/xfdb/64637
http://www.vupen.com/english/advisories/2011/0080
http://sourceforge.net/mailarchive/forum.php?thread_name=002b01cbb0e2%24ae636c80%240b2a4580%24%40acm.org&forum_name=png-mng-implement
http://securitytracker.com/id?1024955
http://secunia.com/advisories/42863
http://osvdb.org/70417
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