Affected: AlmaLinux:8: mutt

Mutt is a low resource, highly configurable, text-based MIME e-mail client. Mutt supports most e-mail storing formats, such as mbox and Maildir, as well as most protocols, including POP3 and IMAP.

The following packages have been upgraded to a later upstream version: mutt (2.0.7). (BZ#1912614)

Security Fix(es):

* mutt: Incorrect handling of invalid initial IMAP responses could lead to an authentication attempt over unencrypted connection (CVE-2020-28896)

* mutt: Memory leak when parsing rfc822 group addresses (CVE-2021-3181)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Affected: openEuler:20.03-LTS: mutt, openEuler:20.03-LTS-SP1: mutt

Mutt is a small but very powerful text-based mail client for Unix operating systems.\r\n\r\n Security Fix(es):\r\n\r\n Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.(CVE-2020-28896)\r\n\r\n

Security update for neomutt

Security update for mutt

Affected: Ubuntu:16.04:LTS: mutt, Ubuntu:18.04:LTS: mutt, Ubuntu:Pro:18.04:LTS: neomutt, Ubuntu:20.04:LTS: mutt, Ubuntu:Pro:20.04:LTS: neomutt

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in mutt ausnutzen, um Informationen offenzulegen.