The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Net-SNMP: denial of service via snmptrapd

Synthesis of the vulnerability 

An attacker can send a malicious SNMP TRAP packet to snmptrapd of Net-SNMP with "-OQ", in order to trigger a denial of service.
Vulnerable systems: BIG-IP Hardware, TMOS, Fedora, Juniper SBR, Net-SNMP, openSUSE, Solaris, RHEL, Ubuntu.
Severity of this threat: 2/4.
Creation date: 01/09/2014.
Références of this weakness: CVE-2014-3565, FEDORA-2014-10095, FEDORA-2014-10099, JSA10991, MDVSA-2014:184, MDVSA-2015:092, openSUSE-SU-2014:1108-1, RHSA-2015:1385-01, RHSA-2015:2345-01, SOL17315, USN-2711-1, VIGILANCE-VUL-15248.

Description of the vulnerability 

The Net-SNMP snmptrapd daemon supports the "-OQ" option, which indicates to not display the type (Timeticks, Integer, etc.).

However, in this case, display functions interpret data from packet (for example NULL) with the type of the MIB (for example Integer), which stops the daemon.

An attacker can therefore send a malicious SNMP TRAP packet to snmptrapd of Net-SNMP with "-OQ", in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This threat bulletin impacts software or systems such as BIG-IP Hardware, TMOS, Fedora, Juniper SBR, Net-SNMP, openSUSE, Solaris, RHEL, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this computer threat.

Solutions for this threat 

Net-SNMP: patch for snmptrapd.
A patch is available in information sources.

F5 BIG-IP: fixed versions for SNMP.
Fixed versions are indicated in information sources.

Fedora: new net-snmp packages.
New packages are available:
  Fedora 19: net-snmp 5.7.2-15.fc19
  Fedora 20: net-snmp 5.7.2-18.fc20

Juniper SBR Carrier: versions 8.4.1R19 and 8.5.0R1.
Versions 8.4.1R19 and 8.5.0R1 are fixed:
  https://support.juniper.net/support/

Mandriva BS2: new net-snmp packages.
New packages are available:
  Mandriva BS2: net-snmp 5.7.2-14.1.mbs2

Mandriva: new net-snmp packages.
New packages are available:
  Mandriva BS1: net-snmp 5.7.2-1.2.mbs1

openSUSE: new net-snmp packages.
New packages are available:
  openSUSE 12.3: net-snmp 5.7.2-3.12.1
  openSUSE 13.1: net-snmp 5.7.2-9.8.1

RHEL 6: new net-snmp packages.
New packages are available:
  RHEL 6: net-snmp 5.5-54.el6

RHEL 7: new net-snmp packages.
New packages are available:
  RHEL 7: net-snmp 5.7.2-24.el7

Solaris: version 11.2.5.5.0.
The version 11.2.5.5.0 is fixed:
  https://support.oracle.com/rs?type=doc&id=1914034.1

Ubuntu: new libsnmp packages.
New packages are available:
  Ubuntu 15.04: libsnmp30 5.7.2~dfsg-8.1ubuntu5.1
  Ubuntu 14.04 LTS: libsnmp30 5.7.2~dfsg-8.1ubuntu3.1
  Ubuntu 12.04 LTS: libsnmp15 5.4.3~dfsg-2.4ubuntu1.3
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a systems vulnerabilities database. The Vigil@nce computer vulnerability tracking service alerts your teams of vulnerabilities or threats impacting your information system.