RHEL 3 : openssh (RHSA-2005:550)

This script is Copyright (C) 2005-2014 Tenable Network Security, Inc.


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.

See also :

https://www.redhat.com/security/data/cve/CVE-2004-2069.html
http://rhn.redhat.com/errata/RHSA-2005-550.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Red Hat Local Security Checks

Nessus Plugin ID: 19830 ()

Bugtraq ID:

CVE ID: CVE-2004-2069