A neomutt security update has been released for Debian GNU/Linux 10 to address two security issues in the STARTTLS handling of the Neomutt mail client, which could enable MITM attacks.

DSA 4708-1: neomutt security update

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Debian Security Advisory DSA-4708-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
June 21, 2020 https://www.debian.org/security/faq
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Package : neomutt
CVE ID : CVE-2020-14093 CVE-2020-14954

Damian Poddebniak and Fabian Ising discovered two security issues in the
STARTTLS handling of the Neomutt mail client, which could enable MITM
attacks.

For the stable distribution (buster), these problems have been fixed in
version 20180716+dfsg.1-1+deb10u1.

We recommend that you upgrade your neomutt packages.

For the detailed security status of neomutt please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/neomutt

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/