Vulnerability identifier: #VU33299

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2012-6151

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Net-snmp
Server applications / Remote management servers, RDP, SSH

Vendor: net-snmp.sourceforge.net

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Net-SNMP 5.7.1 and earlier, when AgentX is registering to handle a MIB and processing GETNEXT requests, allows remote attackers to cause a denial of service (crash or infinite loop, CPU consumption, and hang) by causing the AgentX subagent to timeout.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Net-snmp: 5.7.0 - 5.7.1

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External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
http://seclists.org/oss-sec/2013/q4/398
http://seclists.org/oss-sec/2013/q4/415
http://secunia.com/advisories/55804
http://secunia.com/advisories/57870
http://secunia.com/advisories/59974
http://sourceforge.net/p/net-snmp/bugs/2411/
http://www.gentoo.org/security/en/glsa/glsa-201409-02.xml
http://www.securityfocus.com/bid/64048
http://www.ubuntu.com/usn/USN-2166-1
http://bugzilla.redhat.com/show_bug.cgi?id=1038007
http://exchange.xforce.ibmcloud.com/vulnerabilities/89485
http://rhn.redhat.com/errata/RHSA-2014-0322.html
http://support.apple.com/HT205375

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.