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Gentoo: GLSA-202105-06 Medium: Mutt NeoMutt Security Vulnerability Exploit

gentoo
Calendar Grey May 26, 2021
Dist Gentoo Esm H88
Mutt and NeoMutt Denial of Service flaw revealed in Gentoo notice GLSA 202105-05. Update now for safety.
A vulnerability in Mutt and NeoMutt could lead to a Denial of Service condition.

Summary

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

Topics%20covered

Topics Covered

security advisory denial of service update gentoo mutt neomutt

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 https://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: https://security.gentoo.org/glsa/202105-05
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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.

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Severity: Low
Title: Mutt, NeoMutt: Denial of Service
Date: May 26, 2021
Bugs: #788388, #788391
ID: 202105-05

Topics%20covered

Topics Covered

security advisory denial of service update gentoo mutt neomutt

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.

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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

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.

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