CVE-2019-20892
net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release.
Date published : 2020-06-25
https://security.gentoo.org/glsa/202008-12
https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027