Vulnerability-Lookup

GHSA-R6WW-5963-7R95

Vulnerability from github – Published: 2023-06-09 19:33 – Updated: 2024-02-09 00:34

Summary

Denial of Service via reachable assertion

Details

A grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This was due to incorrect logic when handling GOAWAY frames.

The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests.

The issue was discovered by automated fuzz testing and is resolved by fixing the relevant state handling code.

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": "SwiftURL",
        "name": "github.com/grpc/grpc-swift"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-24777"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-09T19:33:16Z",
    "nvd_published_at": "2022-03-25T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "A grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This was due to incorrect logic when handling `GOAWAY` frames.\n\nThe attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests.\n\nThe issue was discovered by automated fuzz testing and is resolved by fixing the relevant state handling code.",
  "id": "GHSA-r6ww-5963-7r95",
  "modified": "2024-02-09T00:34:17Z",
  "published": "2023-06-09T19:33:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-r6ww-5963-7r95"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24777"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-swift/commit/858f977f2a51fca2292f384cf7a108dc2e73a3bd"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/grpc/grpc-swift"
    }
  ],
  "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": "Denial of Service via reachable assertion"
}

CVE-2022-24777 (GCVE-0-2022-24777)

Vulnerability from cvelistv5 – Published: 2022-03-25 16:35 – Updated: 2025-04-23 18:43

Title

Denial of Service via reachable assertion in grpc-swift

Summary

grpc-swift is the Swift language implementation of gRPC, a remote procedure call (RPC) framework. Prior to version 1.7.2, a grpc-swift server is vulnerable to a denial of service attack via a reachable assertion. This is due to incorrect logic when handling GOAWAY frames. The attack is low-effort: it takes very little resources to construct and send the required sequence of frames. The impact on availability is high as the server will crash, dropping all in flight connections and requests. This issue is fixed in version 1.7.2. There are currently no known workarounds.

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 2025-04-23 15:56 UTC

CWE

CWE-617 - Reachable Assertion

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7639 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/grpc/grpc-swift/security/advis…	x_refsource_CONFIRM
https://github.com/grpc/grpc-swift/commit/858f977…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
grpc	grpc-swift	Affected: < 1.7.2

Show details on NVD website

JSON

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                "timestamp": "2025-04-23T15:56:22.993083Z",
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    ],
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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.

Vulnerability timeline

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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.
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