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USN-408-1: krb5 vulnerability

16 January 2007

krb5 vulnerability

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Releases

Details

The server-side portion of Kerberos' RPC library had a memory
management flaw which allowed users of that library to call a function
pointer located in unallocated memory. By doing specially crafted
calls to the kadmind server, a remote attacker could exploit this to
execute arbitrary code with root privileges on the target computer.

Reduce your security exposure

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.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 6.10
  • libkrb53 - 1.4.3-9ubuntu1.1
  • libkadm55 - 1.4.3-9ubuntu1.1
Ubuntu 6.06
  • libkrb53 - 1.4.3-5ubuntu0.2
  • libkadm55 - 1.4.3-5ubuntu0.2

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References