Vulnerability-Lookup

OESA-2021-1267 (CVE-2021-3571)

Vulnerability from osv_openeuler – Published: 2021-07-17 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

linuxptp security update

Details

Linuxptp is an implementation of the Precision Time Protocol (PTP) 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. Supporting legacy APIs and other platforms is not a goal.

Security Fix(es):

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.(CVE-2021-3571)

Severity

8.1 (High)


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

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3571	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "linuxptp-2.0-4.oe1.aarch64.rpm",
          "linuxptp-debuginfo-2.0-4.oe1.aarch64.rpm",
          "linuxptp-debugsource-2.0-4.oe1.aarch64.rpm"
        ],
        "noarch": [
          "linuxptp-help-2.0-4.oe1.noarch.rpm"
        ],
        "src": [
          "linuxptp-2.0-4.oe1.src.rpm"
        ],
        "x86_64": [
          "linuxptp-debuginfo-2.0-4.oe1.x86_64.rpm",
          "linuxptp-debugsource-2.0-4.oe1.x86_64.rpm",
          "linuxptp-2.0-4.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "linuxptp",
        "purl": "pkg:rpm/openEuler/linuxptp\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0-4.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Linuxptp is an implementation of the Precision Time Protocol (PTP) 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. Supporting legacy APIs and other platforms is not a goal.\r\n\r\nSecurity Fix(es):\r\n\r\nA 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.(CVE-2021-3571)",
  "id": "OESA-2021-1267",
  "modified": "2026-08-06T11:04:30Z",
  "published": "2021-07-17T11:04:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1267"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3571"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "linuxptp security update",
  "upstream": [
    "CVE-2021-3571"
  ]
}

CVE-2021-3571 (GCVE-0-2021-3571)

Vulnerability from cvelistv5 – Published: 2021-07-09 10:33 – Updated: 2024-08-03 17:01

Summary

Severity

No CVSS data available.

CWE

CWE-119

Assigner

redhat redhat root Scorecard

References

3 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1966241	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
n/a	linuxptp	Affected: linuxptp 3.1.1, linuxptp 2.0.1

Show details on NVD website

JSON

To clipboard

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        ],
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    ],
    "cna": {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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OESA-2021-1267 (CVE-2021-3571)

CVE-2021-3571 (GCVE-0-2021-3571)

Tags

Sightings

Nomenclature

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