{"id":"CVE-2017-9951","details":"The try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-8705.","modified":"2026-04-16T06:21:17.163698232Z","published":"2017-07-17T13:18:30.970Z","related":["SUSE-SU-2018:0778-1","SUSE-SU-2018:0807-1","SUSE-SU-2018:0839-1","SUSE-SU-2018:1601-1","openSUSE-SU-2024:11045-1"],"references":[{"type":"WEB","url":"https://usn.ubuntu.com/3588-1/"},{"type":"WEB","url":"http://www.securityfocus.com/bid/99874"},{"type":"ADVISORY","url":"https://github.com/memcached/memcached/wiki/ReleaseNotes1439"},{"type":"ADVISORY","url":"https://groups.google.com/forum/message/raw?msg=memcached/ubGWrkmrr4E/nrm1SeVJAQAJ"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4218"},{"type":"EVIDENCE","url":"https://www.twistlock.com/2017/07/13/cve-2017-9951-heap-overflow-memcached-server-1-4-38-twistlock-vulnerability-report/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/memcached/memcached","events":[{"introduced":"0"},{"last_affected":"ad909901c1aa1c38ad0409ca0b700c03a7c17932"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.4.38"}]}}],"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","1.4.4","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"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9951.json"}}],"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"}]}