CVE-2021-3570

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.

• CWE-119
• CWE-787

• https://bugzilla.redhat.com/show_bug.cgi?id=1966240Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/07/msg00025.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ/
• https://www.debian.org/security/2021/dsa-4938Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1966240Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/07/msg00025.htmlThird Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ/
• https://www.debian.org/security/2021/dsa-4938Third Party Advisory

Published

Jul 9, 2021

Last Modified

Jun 17, 2026

Status

Modified

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