Red Hat Security Advisory: net-snmp security and bug fix update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:0876 Final 4 4 2012-06-20T08:34:00Z Current version 2012-06-20T08:34:00Z 2012-06-20T08:34:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-06-20T09:04:01Z Updated net-snmp packages that fix one security issue and multiple bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The net-snmp packages provide various libraries and tools for the Simple Network Management Protocol (SNMP), including an SNMP library, an extensible agent, tools for requesting or setting information from SNMP agents, tools for generating and handling SNMP traps, a version of the netstat command which uses SNMP, and a Tk/Perl Management Information Base (MIB) browser. An array index error, leading to an out-of-bounds buffer read flaw, was found in the way the net-snmp agent looked up entries in the extension table. A remote attacker with read privileges to a Management Information Base (MIB) subtree handled by the "extend" directive (in "/etc/snmp/snmpd.conf") could use this flaw to crash snmpd via a crafted SNMP GET request. (CVE-2012-2141) These updated net-snmp packages also include numerous bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.3 Technical Notes for information on the most significant of these changes. All users of net-snmp are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the update, the snmpd and snmptrapd daemons will be restarted automatically. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate https://rhn.redhat.com/errata/RHSA-2012-0876.html https://rhn.redhat.com/errata/RHSA-2012-0876.html https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/updates/classification/#moderate https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/net-snmp.html#RHSA-2012-0876 https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/net-snmp.html#RHSA-2012-0876 https://bugzilla.redhat.com/show_bug.cgi?id=736580 https://bugzilla.redhat.com/show_bug.cgi?id=736580 https://bugzilla.redhat.com/show_bug.cgi?id=748410 https://bugzilla.redhat.com/show_bug.cgi?id=748410 https://bugzilla.redhat.com/show_bug.cgi?id=754275 https://bugzilla.redhat.com/show_bug.cgi?id=754275 https://bugzilla.redhat.com/show_bug.cgi?id=757685 https://bugzilla.redhat.com/show_bug.cgi?id=757685 https://bugzilla.redhat.com/show_bug.cgi?id=786931 https://bugzilla.redhat.com/show_bug.cgi?id=786931 https://bugzilla.redhat.com/show_bug.cgi?id=788954 https://bugzilla.redhat.com/show_bug.cgi?id=788954 https://bugzilla.redhat.com/show_bug.cgi?id=799291 https://bugzilla.redhat.com/show_bug.cgi?id=799291 https://bugzilla.redhat.com/show_bug.cgi?id=822480 https://bugzilla.redhat.com/show_bug.cgi?id=822480 Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Workstation (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux Server (v. 6) net-snmp-5.5-41.el6.src.rpm net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux Workstation (v. 6) net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux HPC Node (v. 6) net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux Desktop (v. 6) net-snmp-5.5-41.el6 as a component of Red Hat Enterprise Linux Server (v. 6) An array index error, leading to an out-of-bounds buffer read flaw, was found in the way the net-snmp agent looked up entries in the extension table. A remote attacker with read privileges to a Management Information Base (MIB) subtree handled by the "extend" directive (in "/etc/snmp/snmpd.conf") could use this flaw to crash snmpd via a crafted SNMP GET request. 2012-04-26T00:00:00Z 2012-04-24T00:00:00Z CVE-2012-2141 6Client-optional:net-snmp-5.5-41.el6 6Client:net-snmp-5.5-41.el6 6ComputeNode-optional:net-snmp-5.5-41.el6 6ComputeNode:net-snmp-5.5-41.el6 6Server:net-snmp-5.5-41.el6 6Workstation:net-snmp-5.5-41.el6 Moderate 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2012-0876.html https://www.redhat.com/security/data/cve/CVE-2012-2141.html CVE-2012-2141 https://bugzilla.redhat.com/show_bug.cgi?id=815813 bz#815813: CVE-2012-2141 net-snmp: Array index error, leading to out-of heap-based buffer read (snmpd crash)