Ubuntu Security Notice USN-2340-1
4th September, 2014
procmail vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
formail could be made to crash or run programs if it processed specially
crafted mail.
Software description
- procmail
– Versatile e-mail processor
Details
Tavis Ormandy discovered that the formail tool incorrectly handled certain
malformed mail headers. An attacker could use this flaw to cause formail to
crash, resulting in a denial of service, or possibly execute arbitrary
code.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
procmail
3.22-21ubuntu0.1
- Ubuntu 12.04 LTS:
-
procmail
3.22-19ubuntu0.1
- Ubuntu 10.04 LTS:
-
procmail
3.22-18ubuntu1.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.