Vulnerability CVE-2012-3425
Published: 2012-08-13   Modified: 2012-08-14

Description:
The png_push_read_zTXt function in pngpread.c in libpng 1.0.x before 1.0.58, 1.2.x before 1.2.48, 1.4.x before 1.4.10, and 1.5.x before 1.5.10 allows remote attackers to cause a denial of service (out-of-bounds read) via a large avail_in field value in a PNG image.

Type:

CWE-119

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

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Redhat -> Libpng 
Opensuse -> Opensuse 
Novell -> Opensuse 
Libpng -> Libpng 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668082
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=blob;f=CHANGES;h=284de253b1561b976291ba7405acd71ae71ff597;hb=refs/heads/libpng10
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=blob;f=CHANGES;h=2da5a7a8b690e257f94353b5b49d493cdc385322;hb=refs/heads/libpng14
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=blob;f=CHANGES;h=73e2ffd6a1471f2144d0ce7165d7323cb109f10f;hb=refs/heads/libpng15
http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=blob;f=CHANGES;hb=a4b640865ae47986bbe71ecc0e7d5181dcb0bac8
http://lists.opensuse.org/opensuse-updates/2012-08/msg00004.html
http://www.openwall.com/lists/oss-security/2012/07/24/3
http://www.openwall.com/lists/oss-security/2012/07/24/5
http://www.ubuntu.com/usn/USN-2815-1
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