{"id":"CVE-2017-16944","details":"The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.","modified":"2026-07-08T05:49:52.093477239Z","published":"2017-11-25T17:29:00.307Z","related":["openSUSE-SU-2021:0677-1","openSUSE-SU-2021:0753-1","openSUSE-SU-2021:0754-1","openSUSE-SU-2024:10746-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux","cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2021/05/04/7"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1039873"},{"type":"ADVISORY","url":"https://www.debian.org/security/2017/dsa-4053"},{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/43184/"},{"type":"REPORT","url":"https://bugs.exim.org/show_bug.cgi?id=2201"},{"type":"ARTICLE","url":"http://openwall.com/lists/oss-security/2017/11/25/1"},{"type":"ARTICLE","url":"http://openwall.com/lists/oss-security/2017/11/25/2"},{"type":"ARTICLE","url":"http://openwall.com/lists/oss-security/2017/11/25/3"},{"type":"ARTICLE","url":"https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/exim/exim","events":[{"introduced":"57091745e6d5ce4259c645b3ac63838668d55b7f"},{"last_affected":"38903fb5b864ee99904d035337c66891604d9678"}],"database_specific":{"extracted_events":[{"introduced":"4.88"},{"last_affected":"4.88"},{"introduced":"4.89"},{"last_affected":"4.89"}],"source":"CPE_STRING","cpe":["cpe:2.3:a:exim:exim:4.88:*:*:*:*:*:*:*","cpe:2.3:a:exim:exim:4.89:*:*:*:*:*:*:*"]}}],"versions":["4.88","4.89","exim-4_89","exim-4_89_RC7","exim-4_89_RC6","exim-4_89_RC5","exim-4_89_RC4","exim-4_89_RC3","exim-4_89_RC1","exim-4_88"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-16944.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"}]}