CVE-2021-3571
7.1 · HIGHOverview
CVE-2021-3571 is a high-severity vulnerability affecting linuxptp_project linuxptp. It was published on July 9, 2021 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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 message to cause an information leak or crash. The highest threat from this vulnerability is to data confidentiality and system availability. This flaw affects linuxptp versions before 3.1.1 and before 2.0.1.
Remediation
Check the references section for vendor advisories and patches from linuxptp_project. Update linuxptp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linuxptp_project | linuxptp | >= 0, < 2.0.1 | Affected |
References
Frequently Asked Questions
What is CVE-2021-3571?
CVE-2021-3571 is a high-severity vulnerability affecting linuxptp_project linuxptp. It was published on July 9, 2021 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2021-3571?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-3571?
Check the references section for vendor advisories and patches from linuxptp_project. Update linuxptp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-3571?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-3571 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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