GLSA 202105-05: Mutt, NeoMutt: Denial of service

http://security.gentoo.org/

Severity:	low
Title:	Mutt, NeoMutt: Denial of service
Date:	05/26/2021
Bugs:	#788388, #788391
ID:	202105-05

Synopsis

A vulnerability in Mutt and NeoMutt could lead to a Denial of Service condition.

Background

Mutt is a small but very powerful text-based mail client.

NeoMutt is a command line mail reader (or MUA). It’s a fork of Mutt with added features.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
mail-client/neomutt	< 20210205-r1	>= 20210205-r1	All supported architectures
mail-client/mutt	< 2.0.7	>= 2.0.7	All supported architectures

Description

It was discovered that Mutt, and NeoMutt did not properly handle certain situations where an IMAP sequence set ends with a comma.

Impact

A remote attacker could entice a user to connect to a malicious IMAP server to cause a Denial of Service condition, or other unspecified impacts.

Workaround

There is no known workaround at this time.

Resolution

All Mutt users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=mail-client/mutt-2.0.7"

All NeoMutt users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=mail-client/neomutt-20210205-r1"

References

CVE-2021-32055

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202105-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.