CentOS 3 / 4 : openssl (CESA-2005:476)

medium Nessus Plugin ID 21830

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated OpenSSL packages that fix security issues are now available.

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

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

Colin Percival reported a cache timing attack that could allow a malicious local user to gain portions of cryptographic keys. The Common Vulnerabilities and Exposures project (cve.mitre.org) assigned the name CVE-2005-0109 to the issue. The OpenSSL library has been patched to add a new fixed-window mod_exp implementation as default for RSA, DSA, and DH private-key operations. This patch is designed to mitigate cache timing and potentially related attacks.

A flaw was found in the way the der_chop script creates temporary files. It is possible that a malicious local user could cause der_chop to overwrite files (CVE-2004-0975). The der_chop script was deprecated and has been removed from these updated packages. Red Hat Enterprise Linux 4 did not ship der_chop and is therefore not vulnerable to this issue.

Users are advised to update to these erratum packages which contain patches to correct these issues.

Please note: After installing this update, users are advised to either restart all services that use OpenSSL or restart their system.

Solution

Update the affected openssl packages.

Plugin Details

Severity: Medium

ID: 21830

File Name: centos_RHSA-2005-476.nasl

Version: 1.21

Type: Local

Agent: unix

Family: CentOS Local Security Checks

Published: 7/3/2006

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 50.9

CVSS v2

Risk Factor: Medium

Base Score: 4.7

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

CVSS v3

Risk Factor: Medium

Base Score: 5.6

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:openssl, cpe:/o:centos:centos:3, p-cpe:/a:centos:centos:openssl-perl, p-cpe:/a:centos:centos:openssl-devel, cpe:/o:centos:centos:4, p-cpe:/a:centos:centos:openssl096b

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

Patch Publication Date: 6/2/2005

Vulnerability Publication Date: 2/9/2005

Reference Information

CVE: CVE-2004-0975, CVE-2005-0109

RHSA: 2005:476

Detections

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