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USN-919-1: Emacs vulnerability

29 March 2010

Emacs vulnerability

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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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Releases

Packages

Details

Dan Rosenberg discovered that the email helper in Emacs did not correctly
check file permissions. A local attacker could perform a symlink race
to read or append to another user's mailbox if it was stored under a
group-writable group-"mail" directory.

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 9.10
Ubuntu 9.04
Ubuntu 8.10
Ubuntu 8.04

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

References