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CVE-2021-3570

HIGHCVSS 8.8/10EPSS 2.96%

Last modified

CVE-2021-3570 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 2.96% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.96%

85.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Linuxptp ProjectLinuxptp< 1.5.1
Linuxptp ProjectLinuxptp>= 1.6.0, < 1.6.1
Linuxptp ProjectLinuxptp>= 1.7.0, < 1.7.1
Linuxptp ProjectLinuxptp>= 1.8.0, < 1.8.1
Linuxptp ProjectLinuxptp>= 1.9.0, < 1.9.3
Linuxptp ProjectLinuxptp>= 2.0.0, < 2.0.1
Linuxptp ProjectLinuxptp>= 3.0.0, < 3.1.1
RedhatEnterprise Linux6.0
RedhatEnterprise Linux7.0
RedhatEnterprise Linux8.0
RedhatEnterprise Linux Aus8.2
RedhatEnterprise Linux Aus8.4
RedhatEnterprise Linux Eus8.1
RedhatEnterprise Linux Eus8.2
RedhatEnterprise Linux Tus8.2
RedhatEnterprise Linux Tus8.4
FedoraprojectFedora33
FedoraprojectFedora34
DebianDebian Linux10.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-3570?
CVE-2021-3570 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.96% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3570?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-3570?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST