{"id":"UBUNTU-CVE-2019-20892","details":"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.","modified":"2026-02-04T03:13:35.807920Z","published":"2020-06-25T10:15:00Z","related":["USN-4410-1"],"upstream":["CVE-2019-20892"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20892"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/06/25/4"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2020/06/25/4"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4410-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-20892"}],"affected":[{"package":{"name":"net-snmp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/net-snmp@5.8+dfsg-2ubuntu2.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.8+dfsg-2ubuntu2.1"}]}],"versions":["5.7.3+dfsg-5ubuntu5","5.7.3+dfsg-5ubuntu6","5.8+dfsg-2ubuntu1","5.8+dfsg-2ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libsnmp-base","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"libsnmp-dev","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"libsnmp-perl","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"libsnmp35","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"snmp","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"snmpd","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"snmptrapd","binary_version":"5.8+dfsg-2ubuntu2.1"},{"binary_name":"tkmib","binary_version":"5.8+dfsg-2ubuntu2.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20892.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}