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RHEL 4 : cyrus-sasl (RHSA-2007:0795)

low Nessus Plugin ID 25986

Synopsis

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

Description

An updated cyrus-sasl package that addresses a security issue and fixes various other bugs is now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The cyrus-sasl package contains the Cyrus implementation of SASL. SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.

A bug was found in cyrus-sasl's DIGEST-MD5 authentication mechanism.
As part of the DIGEST-MD5 authentication exchange, the client is expected to send a specific set of information to the server. If one of these items (the 'realm') was not sent or was malformed, it was possible for a remote unauthenticated attacker to cause a denial of service (segmentation fault) on the server. (CVE-2006-1721)

This errata also fixes the following bugs :

* the Kerberos 5 library included in Red Hat Enterprise Linux 4 was not thread safe. This update adds functionality which allows it to be used safely in a threaded application.

* several memory leak bugs were fixed in cyrus-sasl's DIGEST-MD5 authentication plug-in.

* /dev/urandom is now used by default on systems which don't support hwrandom. Previously, dev/random was the default.

* cyrus-sasl needs zlib-devel to build properly. This dependency information is now included in the package.

Users are advised to upgrade to this updated cyrus-sasl package, which resolves these issues.

Solution

Update the affected packages.

See Also

https://access.redhat.com/security/cve/cve-2006-1721

https://access.redhat.com/errata/RHSA-2007:0795

Plugin Details

Severity: Low

ID: 25986

File Name: redhat-RHSA-2007-0795.nasl

Version: 1.24

Type: local

Agent: unix

Published: 9/5/2007

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Continuous 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: Low

Base Score: 2.6

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:cyrus-sasl, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-md5, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-ntlm, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-devel, cpe:/o:redhat:enterprise_linux:4, cpe:/o:redhat:enterprise_linux:4.5, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-gssapi, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-plain, p-cpe:/a:redhat:enterprise_linux:cyrus-sasl-sql

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

Patch Publication Date: 9/4/2007

Vulnerability Publication Date: 4/11/2006

Reference Information

CVE: CVE-2006-1721

RHSA: 2007:0795