SB2007110601 - Denial of service in net-snmp

Description

This security bulletin contains information about 1 vulnerability.

1) Resource exhaustion (CVE-ID: CVE-2007-5846)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

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.

Remediation

Install update from vendor's website.

References

• 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
• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11258
• https://www.redhat.com/archives/fedora-package-announce/2007-November/msg00613.html