RHEL 6 : cyrus-imapd (RHSA-2011:1508)

high Nessus Plugin ID 56991

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Synopsis

The remote Red Hat host is missing one or more security updates for cyrus-imapd.

Description

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:1508 advisory.

The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support.

An authentication bypass flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to read or post newsgroup messages on an NNTP server configured to require user authentication, without providing valid authentication credentials.
(CVE-2011-3372)

A NULL pointer dereference flaw was found in the cyrus-imapd IMAP server, imapd. A remote attacker could send a specially-crafted mail message to a victim that would possibly prevent them from accessing their mail normally, if they were using an IMAP client that relies on the server threading IMAP feature. (CVE-2011-3481)

Red Hat would like to thank the Cyrus IMAP project for reporting the CVE-2011-3372 issue. Upstream acknowledges Stefan Cornelius of Secunia Research as the original reporter of CVE-2011-3372.

Users of cyrus-imapd are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the update, cyrus-imapd 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 cyrus-imapd package based on the guidance in RHSA-2011:1508.

Plugin Details

Severity: High

ID: 56991

File Name: redhat-RHSA-2011-1508.nasl

Version: 1.20

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 12/2/2011

Updated: 4/14/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2011-3372

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-2011-3481

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:cyrus-imapd-devel, cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:cyrus-imapd, p-cpe:/a:redhat:enterprise_linux:perl-cyrus, p-cpe:/a:redhat:enterprise_linux:cyrus-imapd-murder, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:4, p-cpe:/a:redhat:enterprise_linux:cyrus-imapd-utils, p-cpe:/a:redhat:enterprise_linux:cyrus-imapd-nntp, p-cpe:/a:redhat:enterprise_linux:cyrus-imapd-perl

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: 12/1/2011

Vulnerability Publication Date: 9/14/2011

Reference Information

CVE: CVE-2011-3372, CVE-2011-3481

BID: 49659, 49949

CWE: 476

RHSA: 2011:1508

Detections

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