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Secunia Security Advisory 48026

Secunia Security Advisory 48026
Posted Feb 16, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in libpng, which can be exploited by malicious people to potentially compromise an application using the library.

tags | advisory
MD5 | 624693cdf2f35e81a3b403ba875e0abd

Secunia Security Advisory 48026

Change Mirror Download
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Secunia presentations @ RSA Conference 2012, San Francisco, USA, 27 Feb-02 March
Listen to our Chief Security Specialist, Research Analyst Director, and Director Product Management & Quality Assurance discuss the industry's key topics. Also, visit the Secunia stand #817. Find out more: http://www.rsaconference.com/events/2012/usa/index.htm

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TITLE:
libpng "png_decompress_chunk()" Integer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA48026

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48026/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48026

RELEASE DATE:
2012-02-16

DISCUSS ADVISORY:
http://secunia.com/advisories/48026/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/48026/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=48026

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in libpng, which can be exploited
by malicious people to potentially compromise an application using
the library.

The vulnerability is caused due to an integer overflow error within
the "png_decompress_chunk()" function (pngrutil.c) when uncompressing
certain chunks, which can be exploited to cause a heap-based buffer
overflow.

Successful exploitation may allow execution of arbitrary code but
requires tricking the user into opening a specially crafted PNG file.

SOLUTION:
Do not open PNG files from untrusted sources.

PROVIDED AND/OR DISCOVERED BY:
Originally reported by Juri Aedla in Google Chrome.

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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