USN-541-1: Emacs vulnerability

13 November 2007

emacs22 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 7.10

Software Description

  • emacs22


Drake Wilson discovered that Emacs did not correctly handle the safe mode of “enable-local-variables”. If a user were tricked into opening a specially crafted file while “enable-local-variables” was set to the non-default “:safe”, a remote attacker could execute arbitrary commands with the user’s privileges.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 7.10
emacs22 - 22.1-0ubuntu5.1

To update your system, please follow these instructions:

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