CentOS 5 : openssl097a (CESA-2010:0164)

medium Nessus Plugin ID 45363

Language:

New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote CentOS host is missing a security update.

Description

Updated openssl097a packages that fix a security issue are now available for Red Hat Enterprise Linux 5.

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.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update addresses this flaw by implementing the TLS Renegotiation Indication Extension, as defined in RFC 5746.
(CVE-2009-3555)

Refer to the following Knowledgebase article for additional details about this flaw: http://kbase.redhat.com/faq/docs/DOC-20491

All openssl097a users should upgrade to these updated packages, which contain a backported patch to resolve this issue. For the update to take effect, all services linked to the openssl097a library must be restarted, or the system rebooted.

Solution

Update the affected openssl097a package.

See Also

http://www.nessus.org/u?9615d5fe

http://www.nessus.org/u?bd9c8d43

Plugin Details

Severity: Medium

ID: 45363

File Name: centos_RHSA-2010-0164.nasl

Version: 1.16

Type: local

Agent: unix

Published: 3/29/2010

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P

Temporal Vector: E:POC/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssl097a, cpe:/o:centos:centos:5

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/27/2010

Vulnerability Publication Date: 11/9/2009

Reference Information

CVE: CVE-2009-3555

RHSA: 2010:0164

CWE: 310