RHEL 5 : openssl (RHSA-2010:0054)

medium Nessus Plugin ID 44063

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Synopsis

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

Description

Updated openssl packages that fix two security issues are now available for Red Hat Enterprise Linux 5.

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

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.

It was found that the OpenSSL library did not properly re-initialize its internal state in the SSL_library_init() function after previous calls to the CRYPTO_cleanup_all_ex_data() function, which would cause a memory leak for each subsequent SSL connection. This flaw could cause server applications that call those functions during reload, such as a combination of the Apache HTTP Server, mod_ssl, PHP, and cURL, to consume all available memory, resulting in a denial of service. (CVE-2009-4355)

Dan Kaminsky found that browsers could accept certificates with MD2 hash signatures, even though MD2 is no longer considered a cryptographically strong algorithm. This could make it easier for an attacker to create a malicious certificate that would be treated as trusted by a browser. OpenSSL now disables the use of the MD2 algorithm inside signatures by default. (CVE-2009-2409)

All OpenSSL users should upgrade to these updated packages, which contain backported patches to resolve these issues. For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted.

Solution

Update the affected openssl, openssl-devel and / or openssl-perl packages.

See Also

https://access.redhat.com/security/cve/cve-2009-2409

https://access.redhat.com/security/cve/cve-2009-4355

https://access.redhat.com/errata/RHSA-2010:0054

Plugin Details

Severity: Medium

ID: 44063

File Name: redhat-RHSA-2010-0054.nasl

Version: 1.25

Type: local

Agent: unix

Published: 1/20/2010

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 3.8

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openssl, p-cpe:/a:redhat:enterprise_linux:openssl-devel, p-cpe:/a:redhat:enterprise_linux:openssl-perl, cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:5.4

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: 1/19/2010

Vulnerability Publication Date: 7/30/2009

Reference Information

CVE: CVE-2009-2409, CVE-2009-4355

BID: 31692

CWE: 310, 399

RHSA: 2010:0054