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Red Hat Security Advisory 2014-0321-01

Red Hat Security Advisory 2014-0321-01
Posted Mar 24, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0321-01 - The net-snmp packages provide various libraries and tools for the Simple Network Management Protocol, 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 browser. A buffer overflow flaw was found in the way the decode_icmp_msg() function in the ICMP-MIB implementation processed Internet Control Message Protocol message statistics reported in the /proc/net/snmp file. A remote attacker could send a message for each ICMP message type, which could potentially cause the snmpd service to crash when processing the /proc/net/snmp file.

tags | advisory, remote, overflow, perl, protocol
systems | linux, redhat
advisories | CVE-2014-2284
SHA-256 | eed20b6823d411b76ec67ad4e096e4db4919dcef35c74801bb53e46ffbac5c15

Red Hat Security Advisory 2014-0321-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: net-snmp security and bug fix update
Advisory ID: RHSA-2014:0321-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0321.html
Issue date: 2014-03-24
CVE Names: CVE-2014-2284
=====================================================================

1. Summary:

Updated net-snmp packages that fix one security issue and one bug 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

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.

A buffer overflow flaw was found in the way the decode_icmp_msg() function
in the ICMP-MIB implementation processed Internet Control Message Protocol
(ICMP) message statistics reported in the /proc/net/snmp file. A remote
attacker could send a message for each ICMP message type, which could
potentially cause the snmpd service to crash when processing the
/proc/net/snmp file. (CVE-2014-2284)

This update also fixes the following bug:

* The snmpd service parses the /proc/diskstats file to track disk usage
statistics for UCD-DISKIO-MIB::diskIOTable. On systems with a large number
of block devices, /proc/diskstats may be large in size and parsing it can
take a non-trivial amount of CPU time. With this update, Net-SNMP
introduces a new option, 'diskio', in the /etc/snmp/snmpd.conf file, which
can be used to explicitly specify devices that should be monitored.
Only these whitelisted devices are then reported in
UCD-DISKIO-MIB::diskIOTable, thus speeding up snmpd on systems with
numerous block devices. (BZ#990674)

All net-snmp users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. After installing this
update, the snmpd service will be restarted automatically.

4. Solution:

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/site/articles/11258

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

1070396 - CVE-2014-2284 net-snmp: denial of service flaw in Linux implementation of ICMP-MIB

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

i386:
net-snmp-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm

x86_64:
net-snmp-5.5-49.el6_5.1.x86_64.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

i386:
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-perl-5.5-49.el6_5.1.i686.rpm
net-snmp-python-5.5-49.el6_5.1.i686.rpm
net-snmp-utils-5.5-49.el6_5.1.i686.rpm

x86_64:
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.x86_64.rpm
net-snmp-perl-5.5-49.el6_5.1.x86_64.rpm
net-snmp-python-5.5-49.el6_5.1.x86_64.rpm
net-snmp-utils-5.5-49.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

x86_64:
net-snmp-5.5-49.el6_5.1.x86_64.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.x86_64.rpm
net-snmp-perl-5.5-49.el6_5.1.x86_64.rpm
net-snmp-python-5.5-49.el6_5.1.x86_64.rpm
net-snmp-utils-5.5-49.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

x86_64:
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

i386:
net-snmp-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-perl-5.5-49.el6_5.1.i686.rpm
net-snmp-python-5.5-49.el6_5.1.i686.rpm
net-snmp-utils-5.5-49.el6_5.1.i686.rpm

ppc64:
net-snmp-5.5-49.el6_5.1.ppc64.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.ppc.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.ppc64.rpm
net-snmp-devel-5.5-49.el6_5.1.ppc.rpm
net-snmp-devel-5.5-49.el6_5.1.ppc64.rpm
net-snmp-libs-5.5-49.el6_5.1.ppc.rpm
net-snmp-libs-5.5-49.el6_5.1.ppc64.rpm
net-snmp-perl-5.5-49.el6_5.1.ppc64.rpm
net-snmp-python-5.5-49.el6_5.1.ppc64.rpm
net-snmp-utils-5.5-49.el6_5.1.ppc64.rpm

s390x:
net-snmp-5.5-49.el6_5.1.s390x.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.s390.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.s390x.rpm
net-snmp-devel-5.5-49.el6_5.1.s390.rpm
net-snmp-devel-5.5-49.el6_5.1.s390x.rpm
net-snmp-libs-5.5-49.el6_5.1.s390.rpm
net-snmp-libs-5.5-49.el6_5.1.s390x.rpm
net-snmp-perl-5.5-49.el6_5.1.s390x.rpm
net-snmp-python-5.5-49.el6_5.1.s390x.rpm
net-snmp-utils-5.5-49.el6_5.1.s390x.rpm

x86_64:
net-snmp-5.5-49.el6_5.1.x86_64.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.x86_64.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.x86_64.rpm
net-snmp-perl-5.5-49.el6_5.1.x86_64.rpm
net-snmp-python-5.5-49.el6_5.1.x86_64.rpm
net-snmp-utils-5.5-49.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/net-snmp-5.5-49.el6_5.1.src.rpm

i386:
net-snmp-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-perl-5.5-49.el6_5.1.i686.rpm
net-snmp-python-5.5-49.el6_5.1.i686.rpm
net-snmp-utils-5.5-49.el6_5.1.i686.rpm

x86_64:
net-snmp-5.5-49.el6_5.1.x86_64.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.i686.rpm
net-snmp-debuginfo-5.5-49.el6_5.1.x86_64.rpm
net-snmp-devel-5.5-49.el6_5.1.i686.rpm
net-snmp-devel-5.5-49.el6_5.1.x86_64.rpm
net-snmp-libs-5.5-49.el6_5.1.i686.rpm
net-snmp-libs-5.5-49.el6_5.1.x86_64.rpm
net-snmp-perl-5.5-49.el6_5.1.x86_64.rpm
net-snmp-python-5.5-49.el6_5.1.x86_64.rpm
net-snmp-utils-5.5-49.el6_5.1.x86_64.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2014-2284.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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