RHEL 4 : exim (RHSA-2005:358)

critical Nessus Plugin ID 19672

Synopsis

The remote Red Hat host is missing a security update for exim.

Description

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2005:358 advisory.

Exim is a mail transport agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

An integer overflow flaw was found in PCRE, a Perl-compatible regular expression library included within Exim. A local user could create a maliciously crafted regular expression in such as way that they could gain the privileges of the 'exim' user. The Common Vulnerabilities and Exposures project assigned the name CAN-2005-2491 to this issue. These erratum packages change Exim to use the system PCRE library instead of the internal one.

These packages also fix a minor flaw where the Exim Monitor was incorrectly computing free space on very large file systems.

Users should upgrade to these erratum packages and also ensure they have updated the system PCRE library, for which erratum packages are available seperately in RHSA-2005:761

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

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

Solution

Update the RHEL exim package based on the guidance in RHSA-2005:358.

Plugin Details

Severity: Critical

ID: 19672

File Name: redhat-RHSA-2005-358.nasl

Version: 1.28

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/12/2005

Updated: 11/4/2024

Supported Sensors: Frictionless Assessment Azure, Nessus Agent, Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, 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-2005-2491

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:exim, cpe:/o:redhat:enterprise_linux:4, p-cpe:/a:redhat:enterprise_linux:exim-doc, p-cpe:/a:redhat:enterprise_linux:exim-sa, p-cpe:/a:redhat:enterprise_linux:exim-mon

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: 9/8/2005

Vulnerability Publication Date: 8/23/2005

Reference Information

CVE: CVE-2005-2491

BID: 14620

RHSA: 2005:358

Detections

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