[gentoo-announce] [ GLSA 202105-05 ] Mutt, NeoMutt: Denial of Service

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Severity: Low Title: Mutt, NeoMutt: Denial of Service Date: May 26, 2021 Bugs: #788388, #788391 ID: 202105-05
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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 ——————————————————————- 1 mail-client/mutt < 2.0.7 >= 2.0.7 2 mail-client/neomutt < 20210205-r1 >= 20210205-r1 ——————————————————————- 2 affected packages
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 -v “>=mail-client/neomutt-20210205-r1”
References ==========
[ 1 ] CVE-2021-32055 nvd.nist.gov/vuln/detail/CVE-2021-32055
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
security.gentoo.org/glsa/202105-05
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 bugs.gentoo.org.
License =======
Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons – Attribution / Share Alike license.
creativecommons.org/licenses/by-sa/2.5