{"id":"ALPINE-CVE-2020-12783","details":"Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c.","modified":"2026-11-03T06:32:23.206380480Z","published":"2020-05-11T14:15:11.917Z","upstream":["CVE-2020-12783"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2020-12783"}],"affected":[{"package":{"name":"exim","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}},{"package":{"name":"exim","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/exim?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.93-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2020-12783.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}