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TITLE:
libxslt Pattern Parsing Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA48212

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48212/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48212

RELEASE DATE:
2012-03-07

DISCUSS ADVISORY:
http://secunia.com/advisories/48212/#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/48212/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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 * Systems Affected
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 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=48212

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 libxslt, which can be exploited
by malicious people to cause a DoS (Denial of Service) in an
application using the library.

The vulnerability is caused due to an error in the
"xsltCompilePatternInternal()" function (libxslt/pattern.c) when
parsing XSLT patterns. This can be exploited to cause an
out-of-bounds read resulting in an access violation via a specially
crafted file.

The vulnerability is reported in version 1.1.26. Other versions may
also be affected.

SOLUTION:
Fixed in the GIT repository.

PROVIDED AND/OR DISCOVERED BY:
Originally reported by Aki Helin 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.

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Please Note:
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Secunia NEVER sends attached files with advisories.
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use those supplied by the vendor.

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