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CVE-2021-3570

HIGH
8.8
CVSS Score
Published: July 9, 2021 at 10:33 AM UTC
Updated: June 17, 2026 at 04:05 AM UTC
7 products affected across 4 vendorsDebian LinuxFedoraEnterprise Linux

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Severity
HIGH8.8
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
10.0
Fedora· Fedora Projectrpm
95%
3334
Linuxptp· Linuxptp Project
95%
v < 1.5.11.6.0 ≤ v < 1.6.11.7.0 ≤ v < 1.7.11.8.0 ≤ v < 1.8.11.9.0 ≤ v < 1.9.32.0.0 ≤ v < 2.0.13.0.0 ≤ v < 3.1.11.5.11.6.11.7.11.8.11.9.32.0.13.1.1
Affected range stops below 1.5.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.6.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.7.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.8.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.9.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 2.0.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.1.1, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
6.07.08.0
Enterprise Linux Aus· Red Hatrpm
95%
8.28.4
Enterprise Linux Eus· Red Hatrpm
95%
8.18.2
Enterprise Linux Tus· Red Hat
95%
8.28.4

References (5)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1966240
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/07/msg00025.html
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHRUVSDP673LXJ5HGIPQPWPIYUPWYQA7/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUBKTRCMJ6VKS7DIBSZQB4ATSKVCJYXJ/
Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4938

CVSS

8.8HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119CWE-787

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