========================================================================== Ubuntu Security Notice USN-4403-1 June 24, 2020
mutt vulnerability and regression ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 12.04 ESM Summary: Mutt could be made to enable MITM attacks if it received a specially crafted request. Software Description: - mutt: text-based mailreader supporting MIME, GPG, PGP and threading Details: It was discovered that Mutt incorrectly handled certain requests. An attacker could possibly use this issue to enable MITM attacks. (CVE-2020-14954) This update also address a regression caused in the last update USN-4401-1. It only affected Ubuntu 12.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: mutt 1.13.2-1ubuntu0.2 Ubuntu 19.10: mutt 1.10.1-2.1ubuntu0.2 Ubuntu 18.04 LTS: mutt 1.9.4-3ubuntu0.3 Ubuntu 16.04 LTS: mutt 1.5.24-1ubuntu0.4 Ubuntu 12.04 ESM: mutt 1.5.21-5ubuntu2.5 After a standard system update you need to restart mutt to make all the necessary changes. References: https://usn.ubuntu.com/4403-1 CVE-2020-14954, https://launchpad.net/bugs/1884588 Package Information: https://launchpad.net/ubuntu/+source/mutt/1.13.2-1ubuntu0.2 https://launchpad.net/ubuntu/+source/mutt/1.10.1-2.1ubuntu0.2 https://launchpad.net/ubuntu/+source/mutt/1.9.4-3ubuntu0.3 https://launchpad.net/ubuntu/+source/mutt/1.5.24-1ubuntu0.4
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