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TITLE:
Apache Subversion mod_dav_svn NULL Pointer Dereference Vulnerability

SECUNIA ADVISORY ID:
SA43603

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43603/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43603

RELEASE DATE:
2011-03-04

DISCUSS ADVISORY:
http://secunia.com/advisories/43603/#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/43603/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
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 * Secunia CVSS Score
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https://ca.secunia.com/?page=viewadvisory&vuln_id=43603

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 Apache Subversion, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a NULL pointer dereference error
in the mod_dav_svn module when processing a lock token, which can be
exploited to cause a crash via a specially crafted HTTP request.

Successful exploitation requires that the Subversion server allows
anonymous read access.

The vulnerability is reported in versions prior to 1.6.16.

SOLUTION:
Update to version 1.6.16.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Philip Martin, WANdisco.

ORIGINAL ADVISORY:
http://subversion.apache.org/security/CVE-2011-0715-advisory.txt

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:
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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