USN-642-1: Postfix vulnerability

10 September 2008

Postfix vulnerability

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

Releases

Packages

Details

Wietse Venema discovered that Postfix leaked internal file descriptors
when executing non-Postfix commands. A local attacker could exploit
this to cause Postfix to run out of descriptors, leading to a denial
of service.

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 8.04
Ubuntu 7.10

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

References

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading