USN-1135-1: Exim vulnerability

25 May 2011

An attacker could send crafted input to Exim and cause it to run programs as the Exim user.

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Releases

Packages

  • exim4 - metapackage to ease Exim MTA (v4) installation

Details

It was discovered that the Exim daemon did not correctly handle certain
DKIM identities. A remote attacker could send specially crafted email to
run arbitrary code as the Exim user.

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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 11.04
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