Ubuntu 14.10: USN-2440-1 Moderate: Mutt Denial Of Service Crash

ubuntu

December 11, 2014

The mutt mail client could be made to crash if it opened a speciallycrafted email.

Summary

The mutt mail client could be made to crash if it opened a specially

crafted email.

Software Description:

- mutt: text-based mailreader supporting MIME, GPG, PGP and threading

Details:

Jakub Wilk discovered that the write_one_header function in mutt

did not properly handle newline characters at the beginning of a

header. An attacker could specially craft an email to cause mutt to

crash, resulting in a denial of service.

Topics Covered

security advisory denial of service software issue ubuntu mutt

Update Instructions

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

Ubuntu 14.10:
  mutt                            1.5.23-1.1ubuntu0.2
  mutt-patched                    1.5.23-1.1ubuntu0.2

Ubuntu 14.04 LTS:
  mutt                            1.5.21-6.4ubuntu2.1
  mutt-patched                    1.5.21-6.4ubuntu2.1

Ubuntu 12.04 LTS:
  mutt                            1.5.21-5ubuntu2.2
  mutt-patched                    1.5.21-5ubuntu2.2

Ubuntu 10.04 LTS:
  mutt                            1.5.20-7ubuntu1.3
  mutt-patched                    1.5.20-7ubuntu1.3

After a standard system update you need to restart any running
instances of mutt to make all the necessary changes.