Scientific Linux Security Update : net-snmp on SL7.x x86_64

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

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.

- 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.

- 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.

- 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.

See also :

http://www.nessus.org/u?2a240b5b

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 87562 ()

Bugtraq ID:

CVE ID: CVE-2014-3565

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