Alerts This Week
Warning Icon 1 1,153
Alerts This Week
Warning Icon 1 1,153

Red Hat Enterprise Linux 5 RHSA-2009:1470-01 Moderate: OpenSSH Escalation

red hat
Calendar Grey September 30, 2009
Dist Redhat Esm H88
The advisory from Red Hat regarding the openssh security update highlights a moderate security issue, providing essential information for affected users.
Updated openssh packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat S...

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

OpenSSH is OpenBSD's SSH (Secure Shell) protocol implementation. These packages include the core files necessary for both the OpenSSH client and server.
A Red Hat specific patch used in the openssh packages as shipped in Red Hat Enterprise Linux 5.4 (RHSA-2009:1287) loosened certain ownership requirements for directories used as arguments for the ChrootDirectory configuration options. A malicious user that also has or previously had non-chroot shell access to a system could possibly use this flaw to escalate their privileges and run commands as any system user. (CVE-2009-2904)
All OpenSSH users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically.

Topics%20covered

Topics Covered

security advisory moderate Red Hat software update privilege escalation openssh

References

https://www.cve.org/CVERecord?id=CVE-2009-2904 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: openssh-4.3p2-36.el5_4.2.i386.rpm openssh-askpass-4.3p2-36.el5_4.2.i386.rpm openssh-clients-4.3p2-36.el5_4.2.i386.rpm openssh-debuginfo-4.3p2-36.el5_4.2.i386.rpm openssh-server-4.3p2-36.el5_4.2.i386.rpm
x86_64: openssh-4.3p2-36.el5_4.2.x86_64.rpm openssh-askpass-4.3p2-36.el5_4.2.x86_64.rpm openssh-clients-4.3p2-36.el5_4.2.x86_64.rpm openssh-debuginfo-4.3p2-36.el5_4.2.x86_64.rpm openssh-server-4.3p2-36.el5_4.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: openssh-4.3p2-36.el5_4.2.i386.rpm openssh-askpass-4.3p2-36.el5_4.2.i386.rpm openssh-clients-4.3p2-36.el5_4.2.i386.rpm openssh-debuginfo-4.3p2-36.el5_4.2.i386.rpm openssh-server-4.3p2-36.el5_4.2.i386.rpm
ia64: openssh-4.3p2-36.el5_4.2.ia64.rpm openssh-askpass-4.3p2-36.el5_4.2.ia64.rpm openssh-clients-4.3p2-36.el5_4.2.ia64.rpm openssh-debuginfo-4.3p2-36.el5_4.2.ia64.rpm openssh-server-4.3p2-36.el5_4.2.ia64.rpm
ppc: openssh-4.3p2-36.el5_4.2.ppc.rpm openssh-askpass-4.3p2-36.el5_4.2.ppc.rpm openssh-clients-4.3p2-36.el5_4.2.ppc.rpm openssh-debuginfo-4.3p2-36.el5_4.2.ppc.rpm openssh-server-4.3p2-36.el5_4.2.ppc.rpm
s390x: openssh-4.3p2-36.el5_4.2.s390x.rpm openssh-askpass-4.3p2-36.el5_4.2.s390x.rpm openssh-clients-4.3p2-36.el5_4.2.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:1470-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1470.html
Issue date: 2009-09-30

Topic

Updated openssh packages that fix a security issue are now available forRed Hat Enterprise Linux 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory moderate Red Hat software update privilege escalation openssh

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

522141 - CVE-2009-2904 openssh: possible privilege escalation when using ChrootDirectory setting

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here