USN-1116-1: Kerberos vulnerability

19 April 2011

An unauthenticated remote user could crash the Kerberos service.

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Releases

Packages

  • krb5 - MIT Kerberos services

Details

Felipe Ortega discovered that kadmind did not correctly handle password
changing error conditions. An unauthenticated remote attacker could exploit
this to crash kadmind, leading to a denial of service.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 9.10
Ubuntu 10.10
Ubuntu 10.04

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

References

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Further reading