{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.0",
  "cveMetadata": {
    "cveId": "CVE-2023-45288"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc"
      },
      "title": "HTTP/2 CONTINUATION flood in net/http",
      "descriptions": [
        {
          "lang": "en",
          "value": "An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection."
        }
      ],
      "affected": [
        {
          "vendor": "Go standard library",
          "product": "net/http",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "net/http",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.21.9",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "1.22.0-0",
              "lessThan": "1.22.2",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "http2Framer.readMetaFrame"
            },
            {
              "name": "CanonicalHeaderKey"
            },
            {
              "name": "Client.CloseIdleConnections"
            },
            {
              "name": "Client.Do"
            },
            {
              "name": "Client.Get"
            },
            {
              "name": "Client.Head"
            },
            {
              "name": "Client.Post"
            },
            {
              "name": "Client.PostForm"
            },
            {
              "name": "Cookie.String"
            },
            {
              "name": "Cookie.Valid"
            },
            {
              "name": "Dir.Open"
            },
            {
              "name": "Error"
            },
            {
              "name": "Get"
            },
            {
              "name": "HandlerFunc.ServeHTTP"
            },
            {
              "name": "Head"
            },
            {
              "name": "Header.Add"
            },
            {
              "name": "Header.Del"
            },
            {
              "name": "Header.Get"
            },
            {
              "name": "Header.Set"
            },
            {
              "name": "Header.Values"
            },
            {
              "name": "Header.Write"
            },
            {
              "name": "Header.WriteSubset"
            },
            {
              "name": "ListenAndServe"
            },
            {
              "name": "ListenAndServeTLS"
            },
            {
              "name": "NewRequest"
            },
            {
              "name": "NewRequestWithContext"
            },
            {
              "name": "NotFound"
            },
            {
              "name": "ParseTime"
            },
            {
              "name": "Post"
            },
            {
              "name": "PostForm"
            },
            {
              "name": "ProxyFromEnvironment"
            },
            {
              "name": "ReadRequest"
            },
            {
              "name": "ReadResponse"
            },
            {
              "name": "Redirect"
            },
            {
              "name": "Request.AddCookie"
            },
            {
              "name": "Request.BasicAuth"
            },
            {
              "name": "Request.FormFile"
            },
            {
              "name": "Request.FormValue"
            },
            {
              "name": "Request.MultipartReader"
            },
            {
              "name": "Request.ParseForm"
            },
            {
              "name": "Request.ParseMultipartForm"
            },
            {
              "name": "Request.PostFormValue"
            },
            {
              "name": "Request.Referer"
            },
            {
              "name": "Request.SetBasicAuth"
            },
            {
              "name": "Request.UserAgent"
            },
            {
              "name": "Request.Write"
            },
            {
              "name": "Request.WriteProxy"
            },
            {
              "name": "Response.Cookies"
            },
            {
              "name": "Response.Location"
            },
            {
              "name": "Response.Write"
            },
            {
              "name": "ResponseController.EnableFullDuplex"
            },
            {
              "name": "ResponseController.Flush"
            },
            {
              "name": "ResponseController.Hijack"
            },
            {
              "name": "ResponseController.SetReadDeadline"
            },
            {
              "name": "ResponseController.SetWriteDeadline"
            },
            {
              "name": "Serve"
            },
            {
              "name": "ServeContent"
            },
            {
              "name": "ServeFile"
            },
            {
              "name": "ServeMux.ServeHTTP"
            },
            {
              "name": "ServeTLS"
            },
            {
              "name": "Server.Close"
            },
            {
              "name": "Server.ListenAndServe"
            },
            {
              "name": "Server.ListenAndServeTLS"
            },
            {
              "name": "Server.Serve"
            },
            {
              "name": "Server.ServeTLS"
            },
            {
              "name": "Server.SetKeepAlivesEnabled"
            },
            {
              "name": "Server.Shutdown"
            },
            {
              "name": "SetCookie"
            },
            {
              "name": "Transport.CancelRequest"
            },
            {
              "name": "Transport.Clone"
            },
            {
              "name": "Transport.CloseIdleConnections"
            },
            {
              "name": "Transport.RoundTrip"
            },
            {
              "name": "body.Close"
            },
            {
              "name": "body.Read"
            },
            {
              "name": "bodyEOFSignal.Close"
            },
            {
              "name": "bodyEOFSignal.Read"
            },
            {
              "name": "bodyLocked.Read"
            },
            {
              "name": "bufioFlushWriter.Write"
            },
            {
              "name": "cancelTimerBody.Close"
            },
            {
              "name": "cancelTimerBody.Read"
            },
            {
              "name": "checkConnErrorWriter.Write"
            },
            {
              "name": "chunkWriter.Write"
            },
            {
              "name": "connReader.Read"
            },
            {
              "name": "connectMethodKey.String"
            },
            {
              "name": "expectContinueReader.Close"
            },
            {
              "name": "expectContinueReader.Read"
            },
            {
              "name": "extraHeader.Write"
            },
            {
              "name": "fileHandler.ServeHTTP"
            },
            {
              "name": "fileTransport.RoundTrip"
            },
            {
              "name": "globalOptionsHandler.ServeHTTP"
            },
            {
              "name": "gzipReader.Close"
            },
            {
              "name": "gzipReader.Read"
            },
            {
              "name": "http2ClientConn.Close"
            },
            {
              "name": "http2ClientConn.Ping"
            },
            {
              "name": "http2ClientConn.RoundTrip"
            },
            {
              "name": "http2ClientConn.Shutdown"
            },
            {
              "name": "http2ConnectionError.Error"
            },
            {
              "name": "http2ErrCode.String"
            },
            {
              "name": "http2FrameHeader.String"
            },
            {
              "name": "http2FrameType.String"
            },
            {
              "name": "http2FrameWriteRequest.String"
            },
            {
              "name": "http2Framer.ReadFrame"
            },
            {
              "name": "http2Framer.WriteContinuation"
            },
            {
              "name": "http2Framer.WriteData"
            },
            {
              "name": "http2Framer.WriteDataPadded"
            },
            {
              "name": "http2Framer.WriteGoAway"
            },
            {
              "name": "http2Framer.WriteHeaders"
            },
            {
              "name": "http2Framer.WritePing"
            },
            {
              "name": "http2Framer.WritePriority"
            },
            {
              "name": "http2Framer.WritePushPromise"
            },
            {
              "name": "http2Framer.WriteRSTStream"
            },
            {
              "name": "http2Framer.WriteRawFrame"
            },
            {
              "name": "http2Framer.WriteSettings"
            },
            {
              "name": "http2Framer.WriteSettingsAck"
            },
            {
              "name": "http2Framer.WriteWindowUpdate"
            },
            {
              "name": "http2GoAwayError.Error"
            },
            {
              "name": "http2Server.ServeConn"
            },
            {
              "name": "http2Setting.String"
            },
            {
              "name": "http2SettingID.String"
            },
            {
              "name": "http2SettingsFrame.ForeachSetting"
            },
            {
              "name": "http2StreamError.Error"
            },
            {
              "name": "http2Transport.CloseIdleConnections"
            },
            {
              "name": "http2Transport.NewClientConn"
            },
            {
              "name": "http2Transport.RoundTrip"
            },
            {
              "name": "http2Transport.RoundTripOpt"
            },
            {
              "name": "http2bufferedWriter.Flush"
            },
            {
              "name": "http2bufferedWriter.Write"
            },
            {
              "name": "http2chunkWriter.Write"
            },
            {
              "name": "http2clientConnPool.GetClientConn"
            },
            {
              "name": "http2connError.Error"
            },
            {
              "name": "http2dataBuffer.Read"
            },
            {
              "name": "http2duplicatePseudoHeaderError.Error"
            },
            {
              "name": "http2gzipReader.Close"
            },
            {
              "name": "http2gzipReader.Read"
            },
            {
              "name": "http2headerFieldNameError.Error"
            },
            {
              "name": "http2headerFieldValueError.Error"
            },
            {
              "name": "http2noDialClientConnPool.GetClientConn"
            },
            {
              "name": "http2noDialH2RoundTripper.RoundTrip"
            },
            {
              "name": "http2pipe.Read"
            },
            {
              "name": "http2priorityWriteScheduler.CloseStream"
            },
            {
              "name": "http2priorityWriteScheduler.OpenStream"
            },
            {
              "name": "http2pseudoHeaderError.Error"
            },
            {
              "name": "http2requestBody.Close"
            },
            {
              "name": "http2requestBody.Read"
            },
            {
              "name": "http2responseWriter.Flush"
            },
            {
              "name": "http2responseWriter.FlushError"
            },
            {
              "name": "http2responseWriter.Push"
            },
            {
              "name": "http2responseWriter.SetReadDeadline"
            },
            {
              "name": "http2responseWriter.SetWriteDeadline"
            },
            {
              "name": "http2responseWriter.Write"
            },
            {
              "name": "http2responseWriter.WriteHeader"
            },
            {
              "name": "http2responseWriter.WriteString"
            },
            {
              "name": "http2roundRobinWriteScheduler.OpenStream"
            },
            {
              "name": "http2serverConn.CloseConn"
            },
            {
              "name": "http2serverConn.Flush"
            },
            {
              "name": "http2stickyErrWriter.Write"
            },
            {
              "name": "http2transportResponseBody.Close"
            },
            {
              "name": "http2transportResponseBody.Read"
            },
            {
              "name": "http2writeData.String"
            },
            {
              "name": "initALPNRequest.ServeHTTP"
            },
            {
              "name": "loggingConn.Close"
            },
            {
              "name": "loggingConn.Read"
            },
            {
              "name": "loggingConn.Write"
            },
            {
              "name": "maxBytesReader.Close"
            },
            {
              "name": "maxBytesReader.Read"
            },
            {
              "name": "onceCloseListener.Close"
            },
            {
              "name": "persistConn.Read"
            },
            {
              "name": "persistConnWriter.ReadFrom"
            },
            {
              "name": "persistConnWriter.Write"
            },
            {
              "name": "populateResponse.Write"
            },
            {
              "name": "populateResponse.WriteHeader"
            },
            {
              "name": "readTrackingBody.Close"
            },
            {
              "name": "readTrackingBody.Read"
            },
            {
              "name": "readWriteCloserBody.Read"
            },
            {
              "name": "redirectHandler.ServeHTTP"
            },
            {
              "name": "response.Flush"
            },
            {
              "name": "response.FlushError"
            },
            {
              "name": "response.Hijack"
            },
            {
              "name": "response.ReadFrom"
            },
            {
              "name": "response.Write"
            },
            {
              "name": "response.WriteHeader"
            },
            {
              "name": "response.WriteString"
            },
            {
              "name": "serverHandler.ServeHTTP"
            },
            {
              "name": "socksDialer.DialWithConn"
            },
            {
              "name": "socksUsernamePassword.Authenticate"
            },
            {
              "name": "stringWriter.WriteString"
            },
            {
              "name": "timeoutHandler.ServeHTTP"
            },
            {
              "name": "timeoutWriter.Write"
            },
            {
              "name": "timeoutWriter.WriteHeader"
            },
            {
              "name": "transportReadFromServerError.Error"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "golang.org/x/net",
          "product": "golang.org/x/net/http2",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/net/http2",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.23.0",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "Framer.readMetaFrame"
            },
            {
              "name": "ClientConn.Close"
            },
            {
              "name": "ClientConn.Ping"
            },
            {
              "name": "ClientConn.RoundTrip"
            },
            {
              "name": "ClientConn.Shutdown"
            },
            {
              "name": "ConfigureServer"
            },
            {
              "name": "ConfigureTransport"
            },
            {
              "name": "ConfigureTransports"
            },
            {
              "name": "ConnectionError.Error"
            },
            {
              "name": "ErrCode.String"
            },
            {
              "name": "FrameHeader.String"
            },
            {
              "name": "FrameType.String"
            },
            {
              "name": "FrameWriteRequest.String"
            },
            {
              "name": "Framer.ReadFrame"
            },
            {
              "name": "Framer.WriteContinuation"
            },
            {
              "name": "Framer.WriteData"
            },
            {
              "name": "Framer.WriteDataPadded"
            },
            {
              "name": "Framer.WriteGoAway"
            },
            {
              "name": "Framer.WriteHeaders"
            },
            {
              "name": "Framer.WritePing"
            },
            {
              "name": "Framer.WritePriority"
            },
            {
              "name": "Framer.WritePushPromise"
            },
            {
              "name": "Framer.WriteRSTStream"
            },
            {
              "name": "Framer.WriteRawFrame"
            },
            {
              "name": "Framer.WriteSettings"
            },
            {
              "name": "Framer.WriteSettingsAck"
            },
            {
              "name": "Framer.WriteWindowUpdate"
            },
            {
              "name": "GoAwayError.Error"
            },
            {
              "name": "ReadFrameHeader"
            },
            {
              "name": "Server.ServeConn"
            },
            {
              "name": "Setting.String"
            },
            {
              "name": "SettingID.String"
            },
            {
              "name": "SettingsFrame.ForeachSetting"
            },
            {
              "name": "StreamError.Error"
            },
            {
              "name": "Transport.CloseIdleConnections"
            },
            {
              "name": "Transport.NewClientConn"
            },
            {
              "name": "Transport.RoundTrip"
            },
            {
              "name": "Transport.RoundTripOpt"
            },
            {
              "name": "bufferedWriter.Flush"
            },
            {
              "name": "bufferedWriter.Write"
            },
            {
              "name": "chunkWriter.Write"
            },
            {
              "name": "clientConnPool.GetClientConn"
            },
            {
              "name": "connError.Error"
            },
            {
              "name": "dataBuffer.Read"
            },
            {
              "name": "duplicatePseudoHeaderError.Error"
            },
            {
              "name": "gzipReader.Close"
            },
            {
              "name": "gzipReader.Read"
            },
            {
              "name": "headerFieldNameError.Error"
            },
            {
              "name": "headerFieldValueError.Error"
            },
            {
              "name": "noDialClientConnPool.GetClientConn"
            },
            {
              "name": "noDialH2RoundTripper.RoundTrip"
            },
            {
              "name": "pipe.Read"
            },
            {
              "name": "priorityWriteScheduler.CloseStream"
            },
            {
              "name": "priorityWriteScheduler.OpenStream"
            },
            {
              "name": "pseudoHeaderError.Error"
            },
            {
              "name": "requestBody.Close"
            },
            {
              "name": "requestBody.Read"
            },
            {
              "name": "responseWriter.Flush"
            },
            {
              "name": "responseWriter.FlushError"
            },
            {
              "name": "responseWriter.Push"
            },
            {
              "name": "responseWriter.SetReadDeadline"
            },
            {
              "name": "responseWriter.SetWriteDeadline"
            },
            {
              "name": "responseWriter.Write"
            },
            {
              "name": "responseWriter.WriteHeader"
            },
            {
              "name": "responseWriter.WriteString"
            },
            {
              "name": "roundRobinWriteScheduler.OpenStream"
            },
            {
              "name": "serverConn.CloseConn"
            },
            {
              "name": "serverConn.Flush"
            },
            {
              "name": "stickyErrWriter.Write"
            },
            {
              "name": "transportResponseBody.Close"
            },
            {
              "name": "transportResponseBody.Read"
            },
            {
              "name": "writeData.String"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-400: Uncontrolled Resource Consumption"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://go.dev/issue/65051"
        },
        {
          "url": "https://go.dev/cl/576155"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2024-2687"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Bartek Nowotarski (https://nowotarski.info/)"
        }
      ]
    }
  }
}