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. References: https://sourceforge.net/p/net-snmp/bugs/2923/ https://bugzilla.redhat.com/show_bug.cgi?id=1663027 Upstream commit: https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
Created net-snmp tracking bugs for this issue: Affects: fedora-all [bug 1851150]
This issue has been addressed in Red Hat Enterprise Linux 8 via: https://access.redhat.com/errata/RHBA-2020:1376