Vulnerability identifier: #VU49578

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2007-5846

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

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

Vendor: net-snmp.sourceforge.net

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the SNMP agent (snmp_agent.c) in net-snmp does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion by sending a GETBULK request with a large max-repeaters value and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Net-snmp: 5.0.1 - 5.3.4.pre2

---

External links
http://bugs.gentoo.org/show_bug.cgi?id=198346
http://lists.vmware.com/pipermail/security-announce/2008/000014.html
http://net-snmp.svn.sourceforge.net/viewvc/net-snmp/tags/Ext-5-4-1/net-snmp/agent/snmp_agent.c?view=log
http://osvdb.org/38904
http://security.gentoo.org/glsa/glsa-200711-31.xml
http://sourceforge.net/project/shownotes.php?release_id=528095&group_id=12694
http://sourceforge.net/tracker/index.php?func=detail&aid=1712988&group_id=12694&atid=112694
http://www.debian.org/security/2008/dsa-1483
http://www.mandriva.com/security/advisories?name=MDKSA-2007:225
http://www.novell.com/linux/security/advisories/2007_25_sr.html
http://www.redhat.com/support/errata/RHSA-2007-1045.html
http://www.securityfocus.com/archive/1/490917/100/0/threaded
http://www.securityfocus.com/bid/26378
http://www.securitytracker.com/id?1018918
http://www.ubuntu.com/usn/usn-564-1
http://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730
http://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11258
http://www.redhat.com/archives/fedora-package-announce/2007-November/msg00613.html

---

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.