{"id":"UBUNTU-CVE-2019-11596","details":"In memcached before 1.5.14, a NULL pointer dereference was found in the \"lru mode\" and \"lru temp_ttl\" commands. This causes a denial of service when parsing crafted lru command messages in process_lru_command in memcached.c.","modified":"2026-02-04T04:39:35.983877Z","published":"2019-04-29T00:00:00Z","related":["USN-3963-1"],"upstream":["CVE-2019-11596"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-11596"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3963-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-11596"}],"affected":[{"package":{"name":"memcached","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/memcached@1.5.6-0ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.6-0ubuntu1.1"}]}],"versions":["1.4.33-1ubuntu3","1.5.4-1ubuntu2","1.5.4-1ubuntu3","1.5.6-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.6-0ubuntu1.1","binary_name":"memcached"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-11596.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}