Gentoo Linux Security Advisory 202007-57 - Multiple vulnerabilities have been found in Mutt and Neomutt, the worst of which could result in an access restriction bypass. Versions less than 1.14.4 are affected.
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Debian Linux Security Advisory 4708-1 - Damian Poddebniak and Fabian Ising discovered two security issues in the STARTTLS handling of the Neomutt mail client, which could enable MITM attacks.
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Ubuntu Security Notice 4403-1 - It was discovered that Mutt incorrectly handled certain requests. An attacker could possibly use this issue to enable MITM attacks. 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.
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