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.

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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 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