Vulnerability-Lookup

GHSA-9RPW-2H95-666C

Vulnerability from github – Published: 2022-10-01 15:52 – Updated: 2023-10-02 11:20

Summary

Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package

Details

Impact

The sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service.

Specific Go Packages Affected

github.com/cloudflare/goflow/v3/decoders/sflow

Patches

Version 3.4.4 contains patches fixing this.

Workarounds

A possible workaround is to not have your goflow collector publicly reachable.

For more information

If you have any questions or comments about this advisory: * Open an issue in goflow repo * Email us netdev[@]cloudflare.com

Severity

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cloudflare/goflow/v3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-2529"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-10-01T15:52:23Z",
    "nvd_published_at": "2022-09-30T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nThe sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service.\n\n### Specific Go Packages Affected\ngithub.com/cloudflare/goflow/v3/decoders/sflow\n\n### Patches\nVersion 3.4.4 contains patches fixing this.\n\n### Workarounds\nA possible workaround is to not have your goflow collector publicly reachable.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [goflow repo](https://github.com/cloudflare/goflow)\n* Email us [netdev[@]cloudflare.com ](mailto:netdev@cloudflare.com)\n",
  "id": "GHSA-9rpw-2h95-666c",
  "modified": "2023-10-02T11:20:15Z",
  "published": "2022-10-01T15:52:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/goflow/security/advisories/GHSA-9rpw-2h95-666c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2529"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/goflow/commit/2b94619a6204443e3ca1769f4e459f9f57039c51"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/goflow/commit/c829ccd2c0aafdc9b886b20bf6f28095607f4998"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cloudflare/goflow"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cloudflare/goflow/releases/tag/v3.4.4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package"
}

CVE-2022-2529 (GCVE-0-2022-2529)

Vulnerability from cvelistv5 – Published: 2022-09-30 10:45 – Updated: 2025-05-20 16:03

Title

Multiple DoS Attack Vectors in sflow packet handling

Summary

sflow decode package does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume large amounts of memory resulting in a denial of service.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-20 16:02 UTC

CWE

CWE-20 - Improper Input Validation
CWE-400 - Uncontrolled Resource Consumption

Assigner

cloudflare mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/cloudflare/goflow/security/adv…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Cloudflare	goflow	Affected: unspecified , < 3.4.4 (custom)

Credits

Justin Timperio, Chase Hiltz

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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