{"id":"CVE-2020-14303","details":"A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.","modified":"2026-04-16T00:02:07.394041192Z","published":"2020-07-06T18:15:20.323Z","related":["SUSE-SU-2020:1913-1","SUSE-SU-2020:1948-1","SUSE-SU-2020:2673-1","openSUSE-SU-2020:0984-1","openSUSE-SU-2020:1023-1","openSUSE-SU-2020:1313-1","openSUSE-SU-2024:11365-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"12.04"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*"},{"extracted_events":[{"last_affected":"14.04"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*"},{"extracted_events":[{"last_affected":"16.04"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*"},{"extracted_events":[{"last_affected":"18.04"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"},{"source":"CPE_FIELD","extracted_events":[{"last_affected":"20.04"}],"cpe":"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"},{"extracted_events":[{"last_affected":"9.0"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"},{"extracted_events":[{"last_affected":"31"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"},{"extracted_events":[{"last_affected":"15.1"}],"source":"CPE_FIELD","cpe":"cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"},{"source":"CPE_FIELD","extracted_events":[{"last_affected":"15.2"}],"cpe":"cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-15"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200709-0003/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4454-1/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4454-2/"},{"type":"ADVISORY","url":"https://www.samba.org/samba/security/CVE-2020-14303.html"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1851298%3B"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/samba-team/samba","events":[{"introduced":"25f2fe02a615e2cf906b6fa495acd8ea0aa9998a"},{"fixed":"e88b0e44899ad462abef61d0082b10d9a4e2c9cb"},{"introduced":"d60cf580825819f11de9e50ec4c4ce591d695ad9"},{"fixed":"c9fa9874747bac838f60b320d201be2f6175ba8b"},{"introduced":"21679048604ab7d74f70cc378e1dcaebbaa9d561"},{"fixed":"6ecd05dfbc201c60346d2ae486663ae0dfc0c09c"}],"database_specific":{"extracted_events":[{"introduced":"4.10.0"},{"fixed":"4.10.17"},{"introduced":"4.11.0"},{"fixed":"4.11.11"},{"introduced":"4.12.0"},{"fixed":"4.12.4"}],"source":"CPE_FIELD","cpe":"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*"}}],"versions":["ldb-1.5.5","ldb-1.5.6","ldb-1.5.8","ldb-2.0.11","ldb-2.0.12","ldb-2.0.8","ldb-2.0.9","ldb-2.1.3","ldb-2.1.4","samba-4.10.0","samba-4.10.1","samba-4.10.13","samba-4.10.14","samba-4.10.16","samba-4.10.6","samba-4.10.7","samba-4.10.9","samba-4.11.0","samba-4.11.1","samba-4.11.10","samba-4.11.4","samba-4.11.6","samba-4.11.7","samba-4.11.9","samba-4.12.0","samba-4.12.1","samba-4.12.3"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14303.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}