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Ubuntu Security Notice USN-1586-1

Ubuntu Security Notice USN-1586-1
Posted Sep 27, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1586-1 - 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. 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. Various other issues were also addressed.

tags | advisory, remote, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2012-0035, CVE-2012-3479, CVE-2012-0035, CVE-2012-3479
MD5 | cfd0563ee546bb410160ffd2e0c6b016

Ubuntu Security Notice USN-1586-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1586-1
September 27, 2012

emacs23 vulnerabilities
============================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

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

Software Description:
- 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)

Update instructions:

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

Ubuntu 12.04 LTS:
emacs23 23.3+1-1ubuntu9.1
emacs23-common 23.3+1-1ubuntu9.1

Ubuntu 11.10:
emacs23 23.3+1-1ubuntu4.1
emacs23-common 23.3+1-1ubuntu4.1

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

References:
http://www.ubuntu.com/usn/usn-1586-1
CVE-2012-0035, CVE-2012-3479

Package Information:
https://launchpad.net/ubuntu/+source/emacs23/23.3+1-1ubuntu9.1
https://launchpad.net/ubuntu/+source/emacs23/23.3+1-1ubuntu4.1

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