USN-6374-1: Mutt vulnerabilities

Releases

• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

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

Details

It was discovered that Mutt incorrectly handled certain email header
contents. If a user were tricked into opening a specially crafted message,
a remote attacker could possibly use this issue to cause a denial of
service. (CVE-2023-4874, CVE-2023-4875)

Update instructions

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

Ubuntu 23.04

• mutt - 2.2.9-1ubuntu0.23.04.1

Ubuntu 22.04

• mutt - 2.1.4-1ubuntu1.2

Ubuntu 20.04

• mutt - 1.13.2-1ubuntu0.6

Ubuntu 18.04

• mutt - 1.9.4-3ubuntu0.6+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• mutt - 1.5.24-1ubuntu0.6+esm3
  Available with Ubuntu Pro
• mutt-patched - 1.5.24-1ubuntu0.6+esm3
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2023-4874
• CVE-2023-4875

Related notices

• USN-6374-2: mutt