{"id":"CVE-2020-13529","details":"An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.","modified":"2026-08-07T11:48:26.726977829Z","published":"2021-05-10T16:15:07.373Z","related":["ALSA-2021:4361","SUSE-SU-2021:2809-1","openSUSE-SU-2021:2809-1","openSUSE-SU-2024:10602-1","openSUSE-SU-2024:11420-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"33"},{"last_affected":"33"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/08/04/2"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/08/17/3"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/09/07/3"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202107-48"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210625-0005/"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/systemd/systemd","events":[{"introduced":"ea500ac513cf51bcb79a5666f1519499d029428f"},{"last_affected":"ea500ac513cf51bcb79a5666f1519499d029428f"}],"database_specific":{"cpe":"cpe:2.3:a:systemd_project:systemd:245:-:*:*:*:*:*:*","extracted_events":[{"introduced":"245-NA"},{"last_affected":"245-NA"}],"source":"CPE_STRING"}}],"versions":["245-NA","v245"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13529.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/systemd/systemd-stable","events":[{"introduced":"ea500ac513cf51bcb79a5666f1519499d029428f"},{"last_affected":"ea500ac513cf51bcb79a5666f1519499d029428f"}],"database_specific":{"cpe":"cpe:2.3:a:systemd_project:systemd:245:-:*:*:*:*:*:*","extracted_events":[{"introduced":"245-NA"},{"last_affected":"245-NA"}],"source":"CPE_STRING"}}],"versions":["245-NA","v245"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13529.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H"}]}