{"id":"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":"2026-05-13T10:40:58.218723Z","published":"2019-04-29T15:29:00.983Z","related":["SUSE-RU-2020:2072-1","SUSE-SU-2020:0843-1","SUSE-SU-2020:1066-1","SUSE-SU-2020:1190-1","SUSE-SU-2020:1381-1","openSUSE-SU-2020:0721-1"],"database_specific":{"unresolved_ranges":[{"source":"CPE_FIELD","extracted_events":[{"last_affected":"18.04"}],"cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"},{"source":"CPE_FIELD","extracted_events":[{"last_affected":"18.10"}],"cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"},{"source":"CPE_FIELD","extracted_events":[{"last_affected":"19.04"}],"cpe":"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"}]},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00060.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UUE3QBMP5UWTXMPKJREUICH6DIK6SOBX/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y2CCWRM4LHB253KG5SPOKRVDCXQX5VZR/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/3963-1/"},{"type":"FIX","url":"https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02"},{"type":"FIX","url":"https://github.com/memcached/memcached/compare/ee1cfe3...50bdc9f"},{"type":"EVIDENCE","url":"https://github.com/memcached/memcached/issues/474"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/memcached/memcached","events":[{"introduced":"0"},{"fixed":"50bdc9f3e134122e280031683f2b502f84e96624"},{"fixed":"d35334f368817a77a6bd1f33c6a5676b2c402c02"}],"database_specific":{"source":["CPE_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"1.5.14"}],"cpe":"cpe:2.3:a:memcached:memcached:*:*:*:*:*:*:*:*"}}],"versions":["1.2.0","1.2.1","1.2.2","1.2.3","1.2.4","1.3.2","1.3.3","1.4-rc1","1.4.0","1.4.0-rc1","1.4.1","1.4.1-rc1","1.4.10","1.4.11","1.4.11-beta1","1.4.11-rc1","1.4.12","1.4.13","1.4.14","1.4.15","1.4.16","1.4.17","1.4.18","1.4.19","1.4.2","1.4.2-rc1","1.4.20","1.4.21","1.4.22","1.4.23","1.4.24","1.4.25","1.4.26","1.4.27","1.4.28","1.4.29","1.4.3","1.4.3-rc1","1.4.3-rc2","1.4.30","1.4.31","1.4.32","1.4.33","1.4.34","1.4.35","1.4.36","1.4.37","1.4.38","1.4.39","1.4.4","1.4.5","1.4.6","1.4.6-rc1","1.4.7","1.4.7-rc1","1.4.8","1.4.8-rc1","1.4.9","1.5.0","1.5.1","1.5.10","1.5.11","1.5.12","1.5.13","1.5.2","1.5.3","1.5.4","1.5.5","1.5.6","1.5.7","1.5.8","1.5.9"],"database_specific":{"vanir_signatures":[{"id":"CVE-2019-11596-1967f0fc","signature_version":"v1","deprecated":false,"signature_type":"Line","digest":{"line_hashes":["336338268569158499963052161425897069766","233805561904951606682463767113544671142","231229471521055592333822676927951654106","26593720285494701453887140545018231728","182815948978057236121080318559136802571","276994487671645872219218029654209611268","99825156840206337896526214937028835528","104735872747704455308422766420332006806"],"threshold":0.9},"target":{"file":"memcached.c"},"source":"https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02"},{"id":"CVE-2019-11596-9c61e3bc","signature_version":"v1","deprecated":false,"signature_type":"Line","digest":{"line_hashes":["334107896010247307306285089201430887264","292587837676685207845281362231269287661","326331395937243589754860394150976833119","304038349451795819667314727527463833519"],"threshold":0.9},"target":{"file":"memcached.c"},"source":"https://github.com/memcached/memcached/commit/50bdc9f3e134122e280031683f2b502f84e96624"},{"id":"CVE-2019-11596-dd15207d","signature_version":"v1","deprecated":false,"signature_type":"Function","digest":{"length":1658,"function_hash":"42977763465979728781145027344553028869"},"target":{"function":"process_lru_command","file":"memcached.c"},"source":"https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02"},{"id":"CVE-2019-11596-dfb07e0d","signature_version":"v1","deprecated":false,"signature_type":"Function","digest":{"length":9085,"function_hash":"303273679678963204193124815876744601712"},"target":{"function":"usage","file":"memcached.c"},"source":"https://github.com/memcached/memcached/commit/50bdc9f3e134122e280031683f2b502f84e96624"}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-11596.json","vanir_signatures_modified":"2026-05-13T10:40:58Z"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}