Detections
Analytics

RHEL 3 : openssh (RHSA-2005:550)

medium Nessus Plugin ID 19830

Synopsis

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

Description

Updated openssh packages that fix a potential security vulnerability and various other bugs are now available.

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

OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This includes the core files necessary for both the OpenSSH client and server.

A bug was found in the way the OpenSSH server handled the MaxStartups and LoginGraceTime configuration variables. A malicious user could connect to the SSH daemon in such a way that it would prevent additional logins from occuring until the malicious connections are closed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-2069 to this issue.

Additionally, the following issues are resolved with this update :

 - The -q option of the ssh client did not suppress the banner message sent by the server, which caused errors when used in scripts.

 - The sshd daemon failed to close the client connection if multiple X clients were forwarded over the connection and the client session exited.

 - The sftp client leaked memory if used for extended periods.

 - The sshd daemon called the PAM functions incorrectly if the user was unknown on the system.

All users of openssh should upgrade to these updated packages, which contain backported patches and resolve these issues.

Solution

Update the affected packages.

See Also

https://access.redhat.com/security/cve/cve-2004-2069

https://access.redhat.com/errata/RHSA-2005:550

Plugin Details

Severity: Medium

ID: 19830

File Name: redhat-RHSA-2005-550.nasl

Version: 1.24

Type: local

Agent: unix

Published: 10/5/2005

Updated: 1/14/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openssh-askpass, p-cpe:/a:redhat:enterprise_linux:openssh, p-cpe:/a:redhat:enterprise_linux:openssh-server, cpe:/o:redhat:enterprise_linux:3, p-cpe:/a:redhat:enterprise_linux:openssh-askpass-gnome, p-cpe:/a:redhat:enterprise_linux:openssh-clients

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

Patch Publication Date: 9/28/2005

Vulnerability Publication Date: 12/31/2004

Reference Information

CVE: CVE-2004-2069

RHSA: 2005:550