Detections
Analytics
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.See Also
http://www.nessus.org/u?bed1ebc3
http://www.nessus.org/u?08153fa4
http://www.nessus.org/u?0ca1a1d5
http://www.nessus.org/u?b69d9f0c
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
Risk Information
VPR
Risk Factor: Medium
Score: 5.2
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