{"id":"CVE-2021-3570","aliases":["DEBIAN-CVE-2021-3570","DLA-2723-1","DSA-4938-1","EUVD-2021-26880","GHSA-rwc4-5qx3-qg4w","OESA-2021-1368","RHSA-2021:2657","RHSA-2021:2658","RHSA-2021:2659","RHSA-2021:2660","RLSA-2021:2660","SUSE-SU-2021:2443-1","SUSE-SU-2021:2472-1","SUSE-SU-2021:2545-1","SUSE-SU-2021:3202-1","UBUNTU-CVE-2021-3570","USN-6097-1","openSUSE-SU-2021:1102-1","openSUSE-SU-2021:3202-1"],"status":"published","title":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when...","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02955,"percentile":0.87363,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-787"],"published":"2021-07-05T00:00:00Z","modified":"2026-10-24T10:30:35Z","fixes":[{"ecosystem":"Debian:12","package":"linuxptp","fixed_in":["3.1-2.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linuxptp","fixed_in":["3.1-2.1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linuxptp","fixed_in":["3.1-2.1"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"linuxptp","fixed_in":["1.8-1+deb9u1"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"linuxptp","fixed_in":["1.9.2-1+deb10u1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"linuxptp","fixed_in":["2.0-5.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP2","package":"linuxptp","fixed_in":["2.0-5.oe1"],"sources":["osv"]},{"ecosystem":"Red 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Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3570","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ/"},{"url":"https://github.com/advisories/GHSA-rwc4-5qx3-qg4w"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3570","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1368","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:2657","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2657.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3570","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3570","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2021:2658","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2658.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:2659","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2659.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:2660","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2660.json","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2021:2660","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212443-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1187646","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3570","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212472-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20212545-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2021/suse-su-20213202-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-3570","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2021/07/06/1","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6097-1","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/SID77H42G7M3XGNJH7J3TZVHCIZENMVJ/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WQJH6H27YAC2H2WM75ZCWCXIEK3AXNV3/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-3570","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-09T10:33:01Z","modified":"2024-08-03T17:01:07.495Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:33:04.020035Z"}],"euvd":[{"id":"EUVD-2021-26880","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-09T10:33:01Z","modified":"2024-08-03T17:01:07Z","updated_at":"2026-11-03T03:25:12.535968Z"}],"ghsa":[{"id":"GHSA-rwc4-5qx3-qg4w","title":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when...","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2022-05-24T19:07:23Z","modified":"2023-01-28T05:08:09Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:44:36.474417Z"}],"nvd":[{"id":"CVE-2021-3570","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-09T11:15:08.723Z","modified":"2026-06-17T04:05:21.677Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":8,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119","CWE-787"],"updated_at":"2026-11-02T14:06:55.259633Z"}],"osv":[{"id":"CVE-2021-3570","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-09T11:15:08.723Z","modified":"2026-10-24T10:30:35.117158793Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"DEBIAN-CVE-2021-3570","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-09T11:15:08.723Z","modified":"2026-10-23T18:03:29.595905348Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"OESA-2021-1368","title":"linuxptp security update","description":"Linuxptp is an implementation of the Precision Time Protocol (PTP) according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel. Supporting legacy APIs and other platforms is not a goal.\r\n\r\nSecurity Fix(es):\r\n\r\nA flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2021-3570)","status":"published","published":"2021-09-30T11:04:38Z","modified":"2026-08-18T01:16:02.298786359Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"RHSA-2021:2657","title":"Red Hat Security Advisory: linuxptp security update","status":"published","published":"2024-09-16T06:08:11Z","modified":"2025-11-22T12:22:28Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:2658","title":"Red Hat Security Advisory: linuxptp security update","status":"published","published":"2024-09-16T06:07:57Z","modified":"2026-06-26T10:55:00Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:2659","title":"Red Hat Security Advisory: linuxptp security update","status":"published","published":"2024-09-16T06:08:04Z","modified":"2025-11-22T12:22:30Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RHSA-2021:2660","title":"Red Hat Security Advisory: linuxptp security update","status":"published","published":"2024-09-16T06:07:51Z","modified":"2025-11-22T12:22:30Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.619234Z"},{"id":"RLSA-2021:2660","title":"Important: linuxptp security update","description":"The linuxptp packages provide Precision Time Protocol (PTP) implementation for Linux according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel. \n\nSecurity Fix(es):\n\n* linuxptp: missing length check of forwarded messages (CVE-2021-3570)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2021-07-06T14:17:30Z","modified":"2026-02-04T18:45:09.784839Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2021-3570","description":"A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.","status":"published","published":"2021-07-05T00:00:00Z","modified":"2026-02-04T03:46:50.359074Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"DLA-2723-1","title":"linuxptp - security update","status":"published","published":"2021-07-31T00:00:00Z","modified":"2026-03-09T01:18:02.05806Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4938-1","title":"linuxptp - security update","status":"published","published":"2021-07-13T00:00:00Z","modified":"2026-03-09T02:09:26.935088Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"openSUSE-SU-2021:1102-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Validate the messageLength field of incoming messages. (bsc#1187646)\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2021-08-09T21:58:33Z","modified":"2026-02-04T03:34:28.730391Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"openSUSE-SU-2021:3202-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Fixed messageLength validation field of incoming messages (bsc#1187646).\n","status":"published","published":"2021-09-23T09:29:14Z","modified":"2026-02-04T03:51:21.597553Z","updated_at":"2026-11-02T16:58:32.266854Z"},{"id":"SUSE-SU-2021:2443-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Validate the messageLength field of incoming messages. (bsc#1187646)\n","status":"published","published":"2021-07-21T12:03:18Z","modified":"2026-02-04T03:22:11.219498Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2472-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Validate the messageLength field of incoming messages. (bsc#1187646)\n","status":"published","published":"2021-07-27T08:39:09Z","modified":"2026-02-04T02:31:13.366471Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:2545-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Validate the messageLength field of incoming messages. (bsc#1187646)\n","status":"published","published":"2021-07-28T07:05:57Z","modified":"2026-02-04T03:57:57.779287Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"SUSE-SU-2021:3202-1","title":"Security update for linuxptp","description":"This update for linuxptp fixes the following issues:\n\n- CVE-2021-3570: Fixed messageLength validation field of incoming messages (bsc#1187646).\n","status":"published","published":"2021-09-23T09:29:13Z","modified":"2026-02-04T03:32:26.434244Z","updated_at":"2026-11-02T15:53:49.605187Z"},{"id":"USN-6097-1","title":"linuxptp vulnerability","description":"It was discovered that Linux PTP did not properly perform a length check \nwhen forwarding a PTP message between ports. A remote attacker could \npossibly use this issue to access sensitive information, execute \narbitrary code, or cause a denial of service.\n","status":"published","published":"2023-05-29T05:19:31Z","modified":"2026-06-25T13:32:04.583130172Z","updated_at":"2026-11-02T16:58:16.738762Z"}]}}