A mutt security update has been released for Debian GNU/Linux 8 LTS to address two vulnerabilities.

DLA 2268-1: mutt security update

Package : mutt
Version : 1.5.23-3+deb8u2
CVE ID : CVE-2020-14093 CVE-2020-14954
Debian Bug : 962897

Two vulnerabilities have been discovered in mutt, a console email client.

CVE-2020-14093

Mutt allowed an IMAP fcc/postpone man-in-the-middle attack via a
PREAUTH response.

CVE-2020-14954

Mutt had a STARTTLS buffering issue that affected IMAP, SMTP, and
POP3. When a server had sent a "begin TLS" response, the client read
additional data (e.g., from a man-in-the-middle attacker) and
evaluated it in a TLS context, aka "response injection."

For Debian 8 "Jessie", these problems have been fixed in version
1.5.23-3+deb8u2.

We recommend that you upgrade your mutt packages.

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