From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Dec 08 2010 - 17:58:27 CST

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TITLE:
GNU C Library "regcomp()" Stack Overflow Denial of Service

SECUNIA ADVISORY ID:
SA42547

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42547/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42547

RELEASE DATE:
2010-12-09

DISCUSS ADVISORY:
http://secunia.com/advisories/42547/#comments

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

http://secunia.com/advisories/42547/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=42547

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
A vulnerability has been discovered in the GNU C Library, which can
be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a stack overflow within the
implementation of the "regcomp()" function when processing certain
regular expressions, which can be exploited to cause a crash in an
application using this function on specially crafted regular
expressions.

The vulnerability is confirmed in version 2.12.1. Other versions may
also be affected.

SOLUTION:
Do not use the "regcomp()" function on untrusted input.

PROVIDED AND/OR DISCOVERED BY:
US-CERT credits Maksymilian Arciemowicz.

ORIGINAL ADVISORY:
US-CERT VU#912279:
http://www.kb.cert.org/vuls/id/912279

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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