RedHat: Moderate: ucd-snmp security update
Posted by Benjamin D. Thomas   
RedHat Linux Updated ucd-snmp packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1. A flaw was found in the way ucd-snmp checked an SNMPv3 packet's Keyed-Hash Message Authentication Code (HMAC). An attacker could use this flaw to spoof an authenticated SNMPv3 packet. (CVE-2008-0960) This update has been rated as having moderate security impact by the Red Hat Security Response Team.
=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: ucd-snmp security update
Advisory ID:       RHSA-2008:0528-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0528.html
Issue date:        2008-06-10
CVE Names:         CVE-2008-0960 
=====================================================================

1. Summary:

Updated ucd-snmp packages that fix a security issue are now available for
Red Hat Enterprise Linux 2.1.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1  - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386

3. Description:

The Simple Network Management Protocol (SNMP) is a protocol used for
network management.

A flaw was found in the way ucd-snmp checked an SNMPv3 packet's Keyed-Hash
Message Authentication Code (HMAC). An attacker could use this flaw to
spoof an authenticated SNMPv3 packet. (CVE-2008-0960)

All users of ucd-snmp should upgrade to these updated packages, which
contain a backported patch to resolve this issue.

4. 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
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

447974 - CVE-2008-0960 net-snmp SNMPv3 authentication bypass (VU#877044)

6. Package List:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :

Source:
ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/ucd-snmp-4.2.5-8.AS21.7.src.rpm

i386:
ucd-snmp-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-devel-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-utils-4.2.5-8.AS21.7.i386.rpm

ia64:
ucd-snmp-4.2.5-8.AS21.7.ia64.rpm
ucd-snmp-devel-4.2.5-8.AS21.7.ia64.rpm
ucd-snmp-utils-4.2.5-8.AS21.7.ia64.rpm

Red Hat Linux Advanced Workstation 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/ucd-snmp-4.2.5-8.AS21.7.src.rpm

ia64:
ucd-snmp-4.2.5-8.AS21.7.ia64.rpm
ucd-snmp-devel-4.2.5-8.AS21.7.ia64.rpm
ucd-snmp-utils-4.2.5-8.AS21.7.ia64.rpm

Red Hat Enterprise Linux ES version 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/ucd-snmp-4.2.5-8.AS21.7.src.rpm

i386:
ucd-snmp-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-devel-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-utils-4.2.5-8.AS21.7.i386.rpm

Red Hat Enterprise Linux WS version 2.1:

Source:
ftp://updates.redhat.com/enterprise/2.1WS/en/os/SRPMS/ucd-snmp-4.2.5-8.AS21.7.src.rpm

i386:
ucd-snmp-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-devel-4.2.5-8.AS21.7.i386.rpm
ucd-snmp-utils-4.2.5-8.AS21.7.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0960
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.