{"id":"DEBIAN-CVE-2020-12460","details":"OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarc_xml_parse that can result in a one-byte heap overflow in opendmarc_xml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\\0' byte overwrites the heap metadata of the next chunk and its PREV_INUSE flag.","modified":"2026-09-11T11:00:51.127679932Z","published":"2020-07-27T23:15:12.373Z","upstream":["CVE-2020-12460"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2020-12460"}],"affected":[{"package":{"name":"opendmarc","ecosystem":"Debian:12","purl":"pkg:deb/debian/opendmarc?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0~beta1+dfsg-3"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12460.json"}},{"package":{"name":"opendmarc","ecosystem":"Debian:13","purl":"pkg:deb/debian/opendmarc?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0~beta1+dfsg-3"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12460.json"}},{"package":{"name":"opendmarc","ecosystem":"Debian:14","purl":"pkg:deb/debian/opendmarc?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.0~beta1+dfsg-3"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12460.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}