snmp_api.c in snmpd in Net-SNMP 5.2.x before 5.2.2, 5.1.x before 5.1.3, and 5.0.x before 5.0.10.2, when running in master agentx mode, allows remote attackers to cause a denial of service (crash) by causing a particular TCP disconnect, which triggers a free of an incorrect variable, a different vulnerability than CVE-2005-2177.
http://secunia.com/advisories/25114
http://secunia.com/advisories/25115
http://secunia.com/advisories/25411
http://sourceforge.net/tracker/index.php?func=detail&aid=1207023&group_id=12694&atid=112694
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102929-1
http://www.securityfocus.com/bid/23762
http://www.ubuntu.com/usn/USN-456-1
http://www.vupen.com/english/advisories/2007/1944
https://issues.rpath.com/browse/RPL-1334
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9442