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USN-1586-1: Emacs vulnerabilities

27 September 2012

Emacs could be made to run programs as your login if it opened a specially crafted file.

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Releases

Packages

  • emacs23 - The GNU Emacs editor (with GTK+ user interface)

Details

Hiroshi Oota discovered that Emacs incorrectly handled search paths. If a
user were tricked into opening a file with Emacs, a local attacker could
execute arbitrary Lisp code with the privileges of the user invoking the
program. (CVE-2012-0035)

Paul Ling discovered that Emacs incorrectly handled certain eval forms in
local-variable sections. If a user were tricked into opening a specially
crafted file with Emacs, a remote attacker could execute arbitrary Lisp
code with the privileges of the user invoking the program. (CVE-2012-3479)

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 12.04
Ubuntu 11.10

After a standard system update you need to restart Emacs to make all the
necessary changes.