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Ubuntu 11.10: USN-1290-1 Critical: krb5 Denial Of Service Threat

ubuntu
Calendar Grey December 8, 2011
Scroller Ubuntu
Mitigating the krb5 flaw within Ubuntu impacting KDC to avert potential service disruptions.
The Kerberos Key Distribution Center (KDC) could be made to crash.

Summary

The Kerberos Key Distribution Center (KDC) could be made to crash.

Software Description:

- krb5: MIT Kerberos Network Authentication Protocol

Details:

Simo Sorce discovered that a NULL pointer dereference existed in

the Kerberos Key Distribution Center (KDC). An authenticated remote

attacker could use this to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical kerberos ubuntu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
  krb5-kdc                        1.9.1+dfsg-1ubuntu2.2

In general, a standard system update will make all the necessary changes.

References

CVE-2011-1530

Severity
critical
Lowest
Low
Medium
High
Critical

December 08, 2011

Topics%20covered

Topics Covered

security advisory denial of service critical kerberos ubuntu

Package Information

https://launchpad.net/ubuntu/+source/krb5/1.9.1+dfsg-1ubuntu2.2

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