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RHEL 4 : openssl (RHSA-2005:476)

medium Nessus Plugin ID 18409

Synopsis

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

Description

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2005:476 advisory.

 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 CAN-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 (CAN-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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL openssl package based on the guidance in RHSA-2005:476.

See Also

http://www.nessus.org/u?692c2d02

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=136302

https://bugzilla.redhat.com/show_bug.cgi?id=140061

https://bugzilla.redhat.com/show_bug.cgi?id=157631

https://access.redhat.com/errata/RHSA-2005:476

Plugin Details

Severity: Medium

ID: 18409

File Name: redhat-RHSA-2005-476.nasl

Version: 1.29

Type: local

Agent: unix

Published: 6/2/2005

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

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

CVSS Score Source: CVE-2005-0109

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

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

Patch Publication Date: 6/1/2005

Vulnerability Publication Date: 2/9/2005

Reference Information

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

RHSA: 2005:476