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Red Hat: 2015:1636-01 Moderate: net-snmp Remote Code Issue

red hat
Calendar Grey August 17, 2015
Dist Redhat Esm H88
The advisory from Red Hat addresses a significant net-snmp security patch that impacts enterprise Linux systems and requires prompt action.
Updated net-snmp packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7

Solution

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

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

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.
It was discovered that the snmp_pdu_parse() function could leave incompletely parsed varBind variables in the list of variables. A remote, unauthenticated attacker could use this flaw to crash snmpd or, potentially, execute arbitrary code on the system with the privileges of the user running snmpd. (CVE-2015-5621)
Red Hat would like to thank Qinghao Tang of QIHU 360 company, China for reporting this issue.
All net-snmp users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory moderate remote code execution package update security fix Red Hat Enterprise Linux net-snmp

References

https://access.redhat.com/security/cve/CVE-2015-5621 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: net-snmp-5.5-54.el6_7.1.src.rpm
i386: net-snmp-5.5-54.el6_7.1.i686.rpm net-snmp-debuginfo-5.5-54.el6_7.1.i686.rpm net-snmp-libs-5.5-54.el6_7.1.i686.rpm
x86_64: net-snmp-5.5-54.el6_7.1.x86_64.rpm net-snmp-debuginfo-5.5-54.el6_7.1.i686.rpm net-snmp-debuginfo-5.5-54.el6_7.1.x86_64.rpm net-snmp-libs-5.5-54.el6_7.1.i686.rpm net-snmp-libs-5.5-54.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: net-snmp-debuginfo-5.5-54.el6_7.1.i686.rpm net-snmp-devel-5.5-54.el6_7.1.i686.rpm net-snmp-perl-5.5-54.el6_7.1.i686.rpm net-snmp-python-5.5-54.el6_7.1.i686.rpm net-snmp-utils-5.5-54.el6_7.1.i686.rpm
x86_64: net-snmp-debuginfo-5.5-54.el6_7.1.i686.rpm net-snmp-debuginfo-5.5-54.el6_7.1.x86_64.rpm net-snmp-devel-5.5-54.el6_7.1.i686.rpm net-snmp-devel-5.5-54.el6_7.1.x86_64.rpm net-snmp-perl-5.5-54.el6_7.1.x86_64.rpm net-snmp-python-5.5-54.el6_7.1.x86_64.rpm net-snmp-utils-5.5-54.el6_7.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source: net-snmp-5.5-54.el6_7.1.src.rpm
x86_64: net-snmp-5.5-54.el6_7.1.x86_64.rpm net-snmp-debuginfo-5.5-54.el6_7.1.i686.rpm net-snmp-debuginfo-5.5-54.el6_7.1.x86_64.rpm net-snmp-libs-5.5-54.el6_7.1.i686.rpm net-snmp-libs-5.5-54.el6_7.1.x86_64.rpm net-snmp-perl-5.5-54.el6_7.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2015:1636-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1636.html
Issue date: 2015-08-17

Topic

Updated net-snmp packages that fix one security issue are now availablefor Red Hat Enterprise Linux 6 and 7.Red Hat Product Security has rated this update as having Moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate remote code execution package update security fix Red Hat Enterprise Linux net-snmp

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

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 Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1212408 - CVE-2015-5621 net-snmp: snmp_pdu_parse() incompletely parsed varBinds left in list of variables

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