5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.067 Low
EPSS
Percentile
93.9%
CentOS Errata and Security Advisory CESA-2015:2345
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 denial of service flaw was found in the way snmptrapd handled certain
SNMP traps when started with the “-OQ” option. If an attacker sent an SNMP
trap containing a variable with a NULL type where an integer variable type
was expected, it would cause snmptrapd to crash. (CVE-2014-3565)
This update also fixes the following bugs:
Previously, the clientaddr option in the snmp.conf file affected outgoing
messages sent only over IPv4. With this release, outgoing IPv6 messages are
correctly sent from the interface specified by clientaddr. (BZ#1190679)
The Net-SNMP daemon, snmpd, did not properly clean memory when reloading
its configuration file with multiple “exec” entries. Consequently, the
daemon terminated unexpectedly. Now, the memory is properly cleaned, and
snmpd no longer crashes on reload. (BZ#1228893)
Prior to this update, snmpd did not parse complete IPv4 traffic
statistics, but reported the number of received or sent bytes in the
IP-MIB::ipSystemStatsTable only for IPv6 packets and not for IPv4.
This affected objects ipSystemStatsInOctets, ipSystemStatsOutOctets,
ipSystemStatsInMcastOctets, and ipSystemStatsOutMcastOctets. Now, the
statistics reported by snmpd are collected for IPv4 as well. (BZ#1235697)
The Net-SNMP daemon, snmpd, did not correctly detect the file system
change from read-only to read-write. Consequently, after remounting the
file system into the read-write mode, the daemon reported it to be still
in the read-only mode. A patch has been applied, and snmpd now detects the
mode changes as expected. (BZ#1241897)
All net-snmp users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2015-November/028769.html
Affected packages:
net-snmp
net-snmp-agent-libs
net-snmp-devel
net-snmp-gui
net-snmp-libs
net-snmp-perl
net-snmp-python
net-snmp-sysvinit
net-snmp-utils
Upstream details at:
https://access.redhat.com/errata/RHSA-2015:2345
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 7 | x86_64 | net-snmp | < 5.7.2-24.el7 | net-snmp-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | i686 | net-snmp-agent-libs | < 5.7.2-24.el7 | net-snmp-agent-libs-5.7.2-24.el7.i686.rpm |
CentOS | 7 | x86_64 | net-snmp-agent-libs | < 5.7.2-24.el7 | net-snmp-agent-libs-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | i686 | net-snmp-devel | < 5.7.2-24.el7 | net-snmp-devel-5.7.2-24.el7.i686.rpm |
CentOS | 7 | x86_64 | net-snmp-devel | < 5.7.2-24.el7 | net-snmp-devel-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | x86_64 | net-snmp-gui | < 5.7.2-24.el7 | net-snmp-gui-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | i686 | net-snmp-libs | < 5.7.2-24.el7 | net-snmp-libs-5.7.2-24.el7.i686.rpm |
CentOS | 7 | x86_64 | net-snmp-libs | < 5.7.2-24.el7 | net-snmp-libs-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | x86_64 | net-snmp-perl | < 5.7.2-24.el7 | net-snmp-perl-5.7.2-24.el7.x86_64.rpm |
CentOS | 7 | x86_64 | net-snmp-python | < 5.7.2-24.el7 | net-snmp-python-5.7.2-24.el7.x86_64.rpm |