From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue May 14 2013 - 22:00:27 CDT

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TITLE:
Kerberos kpasswd UDP Packet Processing Denial of Service
Vulnerability

SECUNIA ADVISORY ID:
SA53375

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/53375/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=53375

RELEASE DATE:
2013-05-14

DISCUSS ADVISORY:
http://secunia.com/advisories/53375/#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/53375/

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

https://ca.secunia.com/?page=viewadvisory&vuln_id=53375

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

The vulnerability is caused due to the kpasswd application not
properly handling malformed UDP packets and can be exploited to
exhaust CPU and network resources via the UDP "ping-pong" attack on
port 464.

The vulnerability is reported in all versions.

SOLUTION:
Fixed in the git repository.

PROVIDED AND/OR DISCOVERED BY:
Vincent Danen

ORIGINAL ADVISORY:
Kerberos:
https://github.com/krb5/krb5/commit/cf1a0c411b2668c57c41e9c4efd15ba17b6b322c

Vincent Danen:
http://seclists.org/oss-sec/2013/q2/316

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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