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TITLE:
Apache Sling @CopyFrom Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA49840

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49840/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49840

RELEASE DATE:
2012-07-09

DISCUSS ADVISORY:
http://secunia.com/advisories/49840/#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/49840/

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

https://ca.secunia.com/?page=viewadvisory&vuln_id=49840

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

The vulnerability is caused due to an input verification error when
handling the @CopyFrom operation in the Sling POST servlet. This can
be exploited to cause an infinite loop and subsequently exhaust
memory and storage resources via a specially crafted HTTP request.

The vulnerability is reported in versions 2.1.0 and prior.

SOLUTION:
Update to version 2.1.2. Additionally fixed within the SVN
repository.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits IO Active.

ORIGINAL ADVISORY:
Apache:
http://mail-archives.apache.org/mod_mbox/www-announce/201207.mbox/%3CCAEWfVJ=PwoQmwJg0KmbrC17Gw51kgfKRsqgy=4RpMQsdGh0bVg@mail.gmail.com%3E
https://issues.apache.org/jira/browse/SLING-2517
http://svn.apache.org/viewvc?view=revision&revision=1352865

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:
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vulnerabilities.

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use those supplied by the vendor.

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