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RHEL 6 / 7 : dovecot (RHSA-2014:0790)

medium Nessus Plugin ID 76244

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated dovecot packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.

The Red Hat Security Response Team has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Dovecot is an IMAP server, written with security primarily in mind, for Linux and other UNIX-like systems. It also contains a small POP3 server. It supports mail in both the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.

It was discovered that Dovecot did not properly discard connections trapped in the SSL/TLS handshake phase. A remote attacker could use this flaw to cause a denial of service on an IMAP/POP3 server by exhausting the pool of available connections and preventing further, legitimate connections to the IMAP/POP3 server to be made.
(CVE-2014-3430)

All dovecot users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the dovecot service will be restarted automatically.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2014:0790

https://access.redhat.com/security/cve/cve-2014-3430

Plugin Details

Severity: Medium

ID: 76244

File Name: redhat-RHSA-2014-0790.nasl

Version: 1.14

Type: local

Agent: unix

Published: 6/26/2014

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dovecot, cpe:/o:redhat:enterprise_linux:7.6, cpe:/o:redhat:enterprise_linux:7.7, p-cpe:/a:redhat:enterprise_linux:dovecot-pigeonhole, cpe:/o:redhat:enterprise_linux:6.5, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.5, p-cpe:/a:redhat:enterprise_linux:dovecot-devel, p-cpe:/a:redhat:enterprise_linux:dovecot-pgsql, cpe:/o:redhat:enterprise_linux:7.3, cpe:/o:redhat:enterprise_linux:7.4, p-cpe:/a:redhat:enterprise_linux:dovecot-debuginfo, p-cpe:/a:redhat:enterprise_linux:dovecot-mysql, cpe:/o:redhat:enterprise_linux:6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 6/25/2014

Vulnerability Publication Date: 5/14/2014

Reference Information

CVE: CVE-2014-3430

RHSA: 2014:0790