{"id":"CVE-2017-9445","details":"In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.","modified":"2026-08-07T15:18:36.780531Z","published":"2017-06-28T06:29:00.190Z","related":["SUSE-SU-2017:1898-1","SUSE-SU-2017:2031-1","openSUSE-SU-2024:11420-1"],"references":[{"type":"WEB","url":"https://launchpad.net/bugs/1695546"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/99302"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1038806"},{"type":"FIX","url":"http://openwall.com/lists/oss-security/2017/06/27/8"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/systemd/systemd","events":[{"introduced":"39d1a2d05d4cc75c57de2658ceef04caa9928768"},{"last_affected":"d60c527009133a1ed3d69c14b8c837c790e78d10"}],"database_specific":{"cpe":"cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"223"},{"last_affected":"233"}],"source":"CPE_RANGE"}}],"versions":["v233","v232","v231","v230","v229","v228","v227","v226","v225","v224","v223"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9445.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/systemd/systemd-stable","events":[{"introduced":"39d1a2d05d4cc75c57de2658ceef04caa9928768"},{"last_affected":"d60c527009133a1ed3d69c14b8c837c790e78d10"}],"database_specific":{"cpe":"cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"223"},{"last_affected":"233"}],"source":"CPE_RANGE"}}],"versions":["v233","v232","v231","v230","v229","v228","v227","v226","v225","v224","v223"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-9445.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}