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USN-3928-1: Dovecot vulnerability

1 April 2019

Dovecot could be made to crash or run programs as an administrator if it opened a specially crafted file.

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Releases

Packages

  • dovecot - IMAP and POP3 email server

Details

It was discovered that Dovecot incorrectly handled reading certain headers
from the index. A local attacker could possibly use this issue to escalate
privileges.

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 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

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Further reading