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USN-387-1: Dovecot vulnerability

28 November 2006

Dovecot vulnerability

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Releases

Details

Dovecot was discovered to have an error when handling its index cache
files. This error could be exploited by authenticated POP and IMAP
users to cause a crash of the Dovecot server, or possibly to execute
arbitrary code. Only servers using the non-default option
"mmap_disable=yes" were vulnerable.

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
  • dovecot-common - 1.0.rc2-1ubuntu2.1
Ubuntu 6.06
  • dovecot-common - 1.0.beta3-3ubuntu5.4

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

References

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Further reading