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Red Hat Enterprise Linux 3: RHSA-2009-0295 Moderate: SNMP Access Issues

red hat
Calendar Grey March 26, 2009
Dist Redhat Esm H88
Critical patch release for lib-ssh packages resolving vulnerability concerns on Ubuntu Server installations.
Updated net-snmp packages that fix a security issue are now available for Red Hat Enterprise Linux 3

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

The Simple Network Management Protocol (SNMP) is a protocol used for network management.
It was discovered that the snmpd daemon did not use TCP wrappers correctly, causing network hosts access restrictions defined in "/etc/hosts.allow" and "/etc/hosts.deny" to not be honored. A remote attacker could use this flaw to bypass intended access restrictions. (CVE-2008-6123)
This issue only affected configurations where hosts.allow and hosts.deny were used to limit access to the SNMP server. To obtain information from the server, the attacker would have to successfully authenticate, usually by providing a correct community string.
All net-snmp users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the snmpd and snmptrapd daemons will be restarted automatically.

Topics%20covered

Topics Covered

security advisory security update Red Hat access control network management snmp

References

https://www.cve.org/CVERecord?id=CVE-2008-6123 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 3:
Source:
i386: net-snmp-5.0.9-2.30E.27.i386.rpm net-snmp-debuginfo-5.0.9-2.30E.27.i386.rpm net-snmp-devel-5.0.9-2.30E.27.i386.rpm net-snmp-libs-5.0.9-2.30E.27.i386.rpm net-snmp-perl-5.0.9-2.30E.27.i386.rpm net-snmp-utils-5.0.9-2.30E.27.i386.rpm
ia64: net-snmp-5.0.9-2.30E.27.ia64.rpm net-snmp-debuginfo-5.0.9-2.30E.27.i386.rpm net-snmp-debuginfo-5.0.9-2.30E.27.ia64.rpm net-snmp-devel-5.0.9-2.30E.27.ia64.rpm net-snmp-libs-5.0.9-2.30E.27.i386.rpm net-snmp-libs-5.0.9-2.30E.27.ia64.rpm net-snmp-perl-5.0.9-2.30E.27.ia64.rpm net-snmp-utils-5.0.9-2.30E.27.ia64.rpm
ppc: net-snmp-5.0.9-2.30E.27.ppc.rpm net-snmp-debuginfo-5.0.9-2.30E.27.ppc.rpm net-snmp-debuginfo-5.0.9-2.30E.27.ppc64.rpm net-snmp-devel-5.0.9-2.30E.27.ppc.rpm net-snmp-libs-5.0.9-2.30E.27.ppc.rpm net-snmp-libs-5.0.9-2.30E.27.ppc64.rpm net-snmp-perl-5.0.9-2.30E.27.ppc.rpm net-snmp-utils-5.0.9-2.30E.27.ppc.rpm
s390: net-snmp-5.0.9-2.30E.27.s390.rpm net-snmp-debuginfo-5.0.9-2.30E.27.s390.rpm net-snmp-devel-5.0.9-2.30E.27.s390.rpm net-snmp-libs-5.0.9-2.30E.27.s390.rpm net-snmp-perl-5.0.9-2.30E.27.s390.rpm net-snmp-utils-5.0.9-2.30E.27.s390.rpm
s390x: net-snmp-5.0.9-2.30E.27.s390x.rpm net-snmp-debuginfo-5.0.9-2.30E.27.s390.rpm net-snmp-debuginfo-5.0.9-2.30E.27.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:0295-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:0295.html
Issue date: 2009-03-26

Topic

Updated net-snmp packages that fix a security issue are now available forRed Hat Enterprise Linux 3.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory security update Red Hat access control network management snmp

Relevant Releases Architectures

Red Hat Desktop version 3 - i386, x86_64

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

Bugs Fixed

485211 - CVE-2008-6123 net-snmp: incorrect application of hosts access restrictions in hosts.{allow,deny}

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