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cve[email protected]CVE-2022-41723
HistoryFeb 28, 2023 - 6:15 p.m.

CVE-2022-41723

2023-02-2818:15:09
web.nvd.nist.gov
394
cve-2022-41723
http/2
denial of service
nvd

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 High

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%

A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of small requests.

Affected configurations

NVD
Node
golanggoRange<1.19.6
OR
golanggoMatch1.20.0-
OR
golanghpackRange<0.7.0go
OR
golanghttp2Range<0.7.0go

CNA Affected

[
  {
    "vendor": "Go standard library",
    "product": "net/http",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "net/http",
    "versions": [
      {
        "version": "0",
        "lessThan": "1.19.6",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "1.20.0-0",
        "lessThan": "1.20.1",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "Transport.RoundTrip"
      },
      {
        "name": "Server.Serve"
      },
      {
        "name": "Client.Do"
      },
      {
        "name": "Client.Get"
      },
      {
        "name": "Client.Head"
      },
      {
        "name": "Client.Post"
      },
      {
        "name": "Client.PostForm"
      },
      {
        "name": "Get"
      },
      {
        "name": "Head"
      },
      {
        "name": "ListenAndServe"
      },
      {
        "name": "ListenAndServeTLS"
      },
      {
        "name": "Post"
      },
      {
        "name": "PostForm"
      },
      {
        "name": "Serve"
      },
      {
        "name": "ServeTLS"
      },
      {
        "name": "Server.ListenAndServe"
      },
      {
        "name": "Server.ListenAndServeTLS"
      },
      {
        "name": "Server.ServeTLS"
      }
    ],
    "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": "0.7.0",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "Transport.RoundTrip"
      },
      {
        "name": "Server.ServeConn"
      },
      {
        "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": "Setting.String"
      },
      {
        "name": "SettingID.String"
      },
      {
        "name": "SettingsFrame.ForeachSetting"
      },
      {
        "name": "StreamError.Error"
      },
      {
        "name": "Transport.CloseIdleConnections"
      },
      {
        "name": "Transport.NewClientConn"
      },
      {
        "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": "serverConn.CloseConn"
      },
      {
        "name": "serverConn.Flush"
      },
      {
        "name": "stickyErrWriter.Write"
      },
      {
        "name": "transportResponseBody.Close"
      },
      {
        "name": "transportResponseBody.Read"
      },
      {
        "name": "writeData.String"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "golang.org/x/net",
    "product": "golang.org/x/net/http2/hpack",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "golang.org/x/net/http2/hpack",
    "versions": [
      {
        "version": "0",
        "lessThan": "0.7.0",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "Decoder.parseFieldLiteral"
      },
      {
        "name": "Decoder.readString"
      },
      {
        "name": "Decoder.DecodeFull"
      },
      {
        "name": "Decoder.Write"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

References

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.5 High

AI Score

Confidence

High

0.024 Low

EPSS

Percentile

90.0%