#VU33299 Resource management error in Net-snmp - CVE-2012-6151

Vulnerability identifier: #VU33299

Vulnerability risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green]

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