{"id":"UBUNTU-CVE-2019-6442","details":"An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in ntpd via a malformed config request, related to config_remotely in ntp_config.c, yyparse in ntp_parser.tab.c, and yyerror in ntp_parser.y.","modified":"2025-09-08T16:45:16Z","published":"2019-01-16T05:29:00Z","upstream":["CVE-2019-6442"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-6442"},{"type":"REPORT","url":"https://dumpco.re/blog/ntpsec-bugs"},{"type":"REPORT","url":"https://dumpco.re/bugs/ntpsec-authed-oobwrite"},{"type":"REPORT","url":"https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWS"},{"type":"REPORT","url":"https://www.exploit-db.com/exploits/46178/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-6442"}],"affected":[{"package":{"name":"ntpsec","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ntpsec@1.1.0+dfsg1-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0+dfsg1-1ubuntu0.2"}]}],"versions":["1.0.0+dfsg1-1","1.0.0+dfsg1-3","1.1.0+dfsg1-1","1.1.0+dfsg1-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.1.0+dfsg1-1ubuntu0.2","binary_name":"ntpsec"},{"binary_version":"1.1.0+dfsg1-1ubuntu0.2","binary_name":"ntpsec-ntpdate"},{"binary_version":"1.1.0+dfsg1-1ubuntu0.2","binary_name":"ntpsec-ntpviz"},{"binary_version":"1.1.0+dfsg1-1ubuntu0.2","binary_name":"python3-ntp"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-6442.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}