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Q1 Factsheets released:

http://secunia.com/resources/factsheets/2011_vendor/


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TITLE:
Kerberos kadmind Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA44125

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/44125/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=44125

RELEASE DATE:
2011-04-14

DISCUSS ADVISORY:
http://secunia.com/advisories/44125/#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/44125/

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=44125

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

The vulnerability is caused due to an error in kadmind when
processing certain packets. This can be exploited to cause the
process to free an invalid memory pointer and crash the daemon via a
packet sent to TCP port 749.

The vulnerability is confirmed in version krb5-1.9. Other versions
may also be affected.

SOLUTION:
Restrict access to trusted hosts only (e.g. via network access
control lists).

PROVIDED AND/OR DISCOVERED BY:
Reported by Felipe Ortega in a Debian bug report.

ORIGINAL ADVISORY:
Felipe Ortega:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621726

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.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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