RHEL 6 : dovecot (RHSA-2011:0600)

high Nessus Plugin ID 54597

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Synopsis

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

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:0600 advisory.

Dovecot is an IMAP server for Linux, UNIX, and similar operating systems, primarily written with security in mind.

A flaw was found in the way Dovecot handled SIGCHLD signals. If a large amount of IMAP or POP3 session disconnects caused the Dovecot master process to receive these signals rapidly, it could cause the master process to crash. (CVE-2010-3780)

A flaw was found in the way Dovecot processed multiple Access Control Lists (ACL) defined for a mailbox. In some cases, Dovecot could fail to apply the more specific ACL entry, possibly resulting in more access being granted to the user than intended. (CVE-2010-3707)

This update also adds the following enhancement:

* This erratum upgrades Dovecot to upstream version 2.0.9, providing multiple fixes for the dsync utility and improving overall performance.
Refer to the /usr/share/doc/dovecot-2.0.9/ChangeLog file after installing this update for further information about the changes. (BZ#637056)

Users of dovecot are advised to upgrade to these updated packages, which resolve these issues and add this enhancement. After installing the updated packages, the dovecot service will be restarted automatically.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL dovecot package based on the guidance in RHSA-2011:0600.

Plugin Details

Severity: High

ID: 54597

File Name: redhat-RHSA-2011-0600.nasl

Version: 1.16

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/20/2011

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2010-3707

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2010-3780

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:dovecot-pgsql, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:dovecot-mysql, p-cpe:/a:redhat:enterprise_linux:dovecot-pigeonhole, p-cpe:/a:redhat:enterprise_linux:dovecot, p-cpe:/a:redhat:enterprise_linux:dovecot-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/19/2011

Vulnerability Publication Date: 10/6/2010

Reference Information

CVE: CVE-2010-3707, CVE-2010-3780

BID: 43690

RHSA: 2011:0600

Detections

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