{"action":"Upgrade linuxptp to 3.1-2.1 or later.","affected":[{"fixed":"3.1-2.1","introduced":"0"}],"component":"linuxptp","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["3.1-2.1"],"id":"tcs_01M5NFSJ5RFWHSZE1FSF51X309","modified_at":"2026-10-23T18:03:29.579835160Z","published_at":"2021-07-09T11:15:08.960Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3571","https://security-tracker.debian.org/tracker/CVE-2021-3571"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3571#Debian:13/linuxptp","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3571"}],"summary":"A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync"}