Alerts This Week
Warning Icon 1 1,153
Alerts This Week
Warning Icon 1 1,153

Gentoo: GLSA-202009-03 Normal: Security Issue in Postfix Identified

gentoo
Calendar Grey September 5, 2020
Dist Gentoo Esm H88
Gentoo GLSA 202109-01 outlines several security flaws identified in Dovecot that affect users, necessitating immediate updates.
Multiple vulnerabilities have been found in Dovecot, the worst of which could allow remote attackers to cause a Denial of Service condition.

Summary

It was discovered that Dovecot incorrectly handled deeply nested MIME parts, incorrectly handled memory when using NTLM, and incorrectly handled zero-length messages.

Topics%20covered

Topics Covered

security advisory denial of service gentoo dovecot normal

Resolution

All Dovecot users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-2.3.11.3"

References

[ 1 ] CVE-2020-12100 https://nvd.nist.gov/vuln/detail/CVE-2020-12100 [ 2 ] CVE-2020-12673 https://nvd.nist.gov/vuln/detail/CVE-2020-12673 [ 3 ] CVE-2020-12674 https://nvd.nist.gov/vuln/detail/CVE-2020-12674

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202009-02
style>.gentoo_availability{display:block;}

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.

Severity: Normal
Title: Dovecot: Multiple vulnerabilities
Date: September 06, 2020
Bugs: #736617
ID: 202009-02

Topics%20covered

Topics Covered

security advisory denial of service gentoo dovecot normal

Synopsis

Multiple vulnerabilities have been found in Dovecot, the worst of which could allow remote attackers to cause a Denial of Service condition.

Background

Dovecot is an open source IMAP and POP3 email server.

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-mail/dovecot < 2.3.11.3 >= 2.3.11.3

Impact

===== A remote attacker could send a specially crafted mail or send specially crafted authentication requests possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Your message here