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USN-405-1: fetchmail vulnerability

11 January 2007

fetchmail vulnerability

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Releases

Details

It was discovered that fetchmail did not correctly require TLS
negotiation in certain situations. This would result in a user's
unencrypted password being sent across the network.

If fetchmail has been configured to use the "sslproto tls1",
"sslcertck", or "sslfingerprint" options with a server that does not
correctly support TLS negotiation, this update may cause fetchmail to
(correctly) abort authentication.

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
  • fetchmail - 6.3.4-1ubuntu4.1
Ubuntu 6.06
  • fetchmail - 6.3.2-2ubuntu2.1
Ubuntu 5.10
  • fetchmail - 6.2.5-13ubuntu3.3

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

References