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TITLE:
Libxml2 XPath Nodeset Processing Vulnerability

SECUNIA ADVISORY ID:
SA44711

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44711/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44711

RELEASE DATE:
2011-06-02

DISCUSS ADVISORY:
http://secunia.com/advisories/44711/#comments

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

http://secunia.com/advisories/44711/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=44711

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:
Chris Evans has reported a vulnerability in Libxml2, which can be
exploited by malicious people to cause a DoS (Denial of Service) or
potentially compromise an application using the library.

The vulnerability is caused due to an error when reallocating memory
in xpath.c during the processing of a XPath nodeset. This can be
exploited to cause a heap-based buffer overflow via a specially
crafted XPath expression.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in version 2.7.8. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Chris Evans

ORIGINAL ADVISORY:
http://scarybeastsecurity.blogspot.com/2011/05/libxml-vulnerability-and-interesting.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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