{
  "schema_version": "1.3.1",
  "id": "GO-2022-0236",
  "modified": "0001-01-01T00:00:00Z",
  "published": "2022-07-15T23:04:18Z",
  "aliases": [
    "CVE-2021-31525",
    "GHSA-h86h-8ppg-mxmh"
  ],
  "details": "A malicious HTTP server or client can cause the net/http client or server to panic.\n\nReadRequest and ReadResponse can hit an unrecoverable panic when reading a very large header (over 7MB on 64-bit architectures, or over 4MB on 32-bit ones). Transport and Client are vulnerable and the program can be made to crash by a malicious server. Server is not vulnerable by default, but can be if the default max header of 1MB is overridden by setting Server.MaxHeaderBytes to a higher value, in which case the program can be made to crash by a malicious client.\n\nThis also affects golang.org/x/net/http2/h2c and HeaderValuesContainsToken in golang.org/x/net/http/httpguts.",
  "affected": [
    {
      "package": {
        "name": "stdlib",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.15.12"
            },
            {
              "introduced": "1.16.0-0"
            },
            {
              "fixed": "1.16.4"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "net/http",
            "symbols": [
              "http2clientStream.writeRequest",
              "http2isConnectionCloseRequest",
              "isProtocolSwitchHeader",
              "shouldClose"
            ]
          }
        ]
      }
    },
    {
      "package": {
        "name": "golang.org/x/net",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20210428140749-89ef3d95e781"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "golang.org/x/net/http/httpguts",
            "symbols": [
              "HeaderValuesContainsToken",
              "headerValueContainsToken"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://go.dev/cl/313069"
    },
    {
      "type": "FIX",
      "url": "https://go.googlesource.com/net/+/89ef3d95e781148a0951956029c92a211477f7f9"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/45710"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/cu9SP4eSXMc"
    }
  ],
  "credits": [
    {
      "name": "Guido Vranken"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2022-0236"
  }
}