Vulnerability-Lookup

RUSTSEC-2023-0034 (CVE-2023-26964)

Vulnerability from osv_rustsec – Published: 2023-04-14 12:00 – Updated: 2023-04-20 19:17 – Source website

Summary

Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)

Details

If an attacker is able to flood the network with pairs of HEADERS/RST_STREAM frames, such that the h2 application is not able to accept them faster than the bytes are received, the pending accept queue can grow in memory usage. Being able to do this consistently can result in excessive memory use, and eventually trigger Out Of Memory.

This flaw is corrected in hyperium/h2#668, which restricts remote reset stream count by default.

References

URL

Type

	https://crates.io/crates/h2	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2023-0034.html	ADVISORY
	https://github.com/hyperium/hyper/issues/2877	REPORT

JSON

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "h2",
        "purl": "pkg:cargo/h2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.3.17"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2023-26964",
    "GHSA-f8vr-r385-rh5r"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "If an attacker is able to flood the network with pairs of `HEADERS`/`RST_STREAM` frames, such that the `h2` application is not able to accept them faster than the bytes are received, the pending accept queue can grow in memory usage. Being able to do this consistently can result in excessive memory use, and eventually trigger Out Of Memory.\n\nThis flaw is corrected in [hyperium/h2#668](https://github.com/hyperium/h2/pull/668), which restricts remote reset stream count by default.",
  "id": "RUSTSEC-2023-0034",
  "modified": "2023-04-20T19:17:55Z",
  "published": "2023-04-14T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/h2"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0034.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/hyperium/hyper/issues/2877"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)"
}

CVE-2023-26964 (GCVE-0-2023-26964)

Vulnerability from cvelistv5 – Published: 2023-04-11 00:00 – Updated: 2025-02-11 15:46

Summary

An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).

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: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-11 15:45 UTC

CWE

n/a
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

mitre CNA under the mitre root

CNA scorecard E 27/100 over 2350 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/hyperium/hyper/issues/2877
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T12:01:31.858Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/hyperium/hyper/issues/2877"
          },
          {
            "name": "FEDORA-2023-cc21019773",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYRZ5Y2ALATKKPIITAFAJIS4TR4LUAHO/"
          },
          {
            "name": "FEDORA-2023-37ae269843",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZHBAE7LQARMPUEEV4TWET4D7G6WCWBUD/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-26964",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-11T15:45:51.467025Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-11T15:46:26.268Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-05-18T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/hyperium/hyper/issues/2877"
        },
        {
          "name": "FEDORA-2023-cc21019773",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYRZ5Y2ALATKKPIITAFAJIS4TR4LUAHO/"
        },
        {
          "name": "FEDORA-2023-37ae269843",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZHBAE7LQARMPUEEV4TWET4D7G6WCWBUD/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-26964",
    "datePublished": "2023-04-11T00:00:00.000Z",
    "dateReserved": "2023-02-27T00:00:00.000Z",
    "dateUpdated": "2025-02-11T15:46:26.268Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-F8VR-R385-RH5R

Vulnerability from github – Published: 2023-04-11 15:30 – Updated: 2023-05-01 21:22

Summary

h2 vulnerable to denial of service

Details

Hyper is an HTTP library for Rust and h2 is an HTTP 2.0 client & server implementation for Rust. An issue was discovered in h2 v0.2.4 when processing header frames. It incorrectly processes the HTTP2 RST_STREAM frames by not always releasing the memory immediately upon receiving the reset frame, leading to stream stacking. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).

This issue affects users only when dealing with http2 connections.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "h2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-26964"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-11T21:47:01Z",
    "nvd_published_at": "2023-04-11T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Hyper is an HTTP library for Rust and h2 is an HTTP 2.0 client \u0026 server implementation for Rust. An issue was discovered in h2 v0.2.4 when processing header frames. It incorrectly processes the HTTP2 `RST_STREAM` frames by not always releasing the memory immediately upon receiving the reset frame, leading to stream stacking. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).\n\nThis issue affects users only when dealing with http2 connections.",
  "id": "GHSA-f8vr-r385-rh5r",
  "modified": "2023-05-01T21:22:01Z",
  "published": "2023-04-11T15:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26964"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hyperium/h2/issues/621"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hyperium/hyper/issues/2877"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hyperium/h2/pull/668"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hyperium/hyper"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2023-0034.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "h2 vulnerable to denial of service"
}

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.

Action not permitted

RUSTSEC-2023-0034 (CVE-2023-26964)

CVE-2023-26964 (GCVE-0-2023-26964)

GHSA-F8VR-R385-RH5R

Tags

Sightings

Nomenclature

Related by attack behaviour