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TITLE:
ejabberd "<publish>" Stanza Parsing Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA46915

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46915/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46915

RELEASE DATE:
2011-11-21

DISCUSS ADVISORY:
http://secunia.com/advisories/46915/#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/46915/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46915

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

The vulnerability is caused due to an error within the mod_pubsub
module when parsing certain stanzas. This can be exploited to trigger
an infinite loop via a specially crafted "<publish>" stanza.

The vulnerability is reported in versions prior to 2.1.9.

SOLUTION:
Update to version 2.1.9.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.9
https://support.process-one.net/browse/EJAB-1498

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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