# CVE-2021-3570: linuxptp: The linuxptp packages provide Precision Time Protocol (PTP) implementation for Linux according to IEEE standard 1588...

CVE-2021-3570 is fixed in linuxptp on 1 platform, first by linuxptp 1.8-1ubuntu0.1, released July 4, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-3570
- Priority: High
- CVSS: 8.8 (Important)
- EPSS: 0.0296
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 4, 2021

## 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.   Security Fix(es):  * linuxptp: missing length check of forwarded messages (CVE-2021-3570)  For 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linuxptp RHEL 8 | 0:2.0-5.el8_4.1 | [RHSA-2021:2660](https://patchblox.com/security/data/fix/linux/rhsa-2021-2660.md) | Jul 6, 2021 |
| Linux | linuxptp Ubuntu 18.04.6 LTS (bionic) | 1.8-1ubuntu0.1 | [linuxptp 1.8-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-linuxptp-1.8-1ubuntu0.1.md) | Jul 4, 2021 |
| Linux | linuxptp Ubuntu 20.04 LTS (focal) | 1.9.2-1ubuntu0.1 | [linuxptp 1.9.2-1ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-linuxptp-1.9.2-1ubuntu0.1.md) | Jul 4, 2021 |
| Linux | linuxptp ol 8 | 0:2.0-5.el8_4.1 | [ELSA-2021-2660](https://patchblox.com/security/data/fix/linux/elsa-2021-2660.md) | Jul 7, 2021 |

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