ghsa-r33q-22hv-j29q
Vulnerability from github
Published
2021-06-29 21:14
Modified
2023-02-09 19:39
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Denial of service in github.com/ethereum/go-ethereum
Details

Impact

A DoS vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client.

Patches

The vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896.

Workarounds

This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. It can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896.

For more information

If you have any questions or comments about this advisory: * Open an issue in go-ethereum * Email us at security@ethereum.org

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/ethereum/go-ethereum"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-26264"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-21T21:45:23Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA DoS vulnerability can make a LES server crash via malicious `GetProofsV2` request from a connected LES client.\n\n### Patches\n\nThe vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896. \n\n### Workarounds\n\nThis vulnerability only concerns users explicitly enabling `les` server; disabling `les` prevents the exploit. \nIt can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896. \n\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum)\n* Email us at [security@ethereum.org](mailto:security@ethereum.org)",
  "id": "GHSA-r33q-22hv-j29q",
  "modified": "2023-02-09T19:39:22Z",
  "published": "2021-06-29T21:14:07Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26264"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/pull/21896"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ethereum/go-ethereum"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ethereum/go-ethereum/releases/tag/v1.9.25"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2021-0063"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service in github.com/ethereum/go-ethereum"
}


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