74757 : libpng iCCP Chunk Embedded Profile Length Verification JPG Image Handling Remote DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	813	almost 2 years ago	5 months ago	7 times	100%

Timeline

Disclosure Date
2011-03-22

Description

libpng contains a flaw in the handling of JPG files that may allow a remote denial of service. The issue is due to an error of the embedded_profile_len() function in pngwutil.c. With a specially crafted JPG file containing an iCCP chunk with a negative embedded profile length, a context-dependent attacker can cause the program to crash.

Classification

Location: Context Dependent
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 1.2.39beta5, 1.4.0beta73 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

libpng	libpng	1.2.13beta1
		1.2.15beta3

References

CVE ID: 2009-5063 (see also: NVD)
Secunia Advisory ID: 45635 45646 45660 48078 49660
Vendor Specific News/Changelog Entry: http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=948ee23a2a400672b1751cfc646a7467741e9b2e#patch18
http://www.gentoo.org/security/en/glsa/glsa-201206-15.xml
http://www.ubuntu.com/usn/usn-1367-1
Vendor URL: http://www.libpng.org/pub/png/libpng.html
Other Advisory URL: http://www.openwall.com/lists/oss-security/2011/03/22/7
http://www.openwall.com/lists/oss-security/2011/03/28/6
Vendor Specific Advisory URL: https://hermes.opensuse.org/messages/11255439
https://hermes.opensuse.org/messages/11259948
https://hermes.opensuse.org/messages/11279547

Credit

JD Chen

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2011-09-01 | Disagree?

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