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Debian LTS Advisory DLA-2472-1                [email protected]
https://www.debian.org/lts/security/                          Adrian Bunk
November 30, 2020                             https://wiki.debian.org/LTS
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Package        : mutt
Version        : 1.7.2-1+deb9u4
CVE ID         : CVE-2020-28896
Debian Bug     : 

In Mutt, a text-based Mail User Agent, invalid IMAP server responses 
were not properly handled, potentially resulting in authentication 
credentials being exposed or man-in-the-middle attacks.

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your mutt packages.

For the detailed security status of mutt please refer to
its security tracker page at:

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