id: GO-2023-1571
modules:
    - module: std
      versions:
        - fixed: 1.19.6
        - introduced: 1.20.0-0
          fixed: 1.20.1
      vulnerable_at: 1.20.0
      packages:
        - package: net/http
          symbols:
            - Transport.RoundTrip
            - Server.Serve
          derived_symbols:
            - Client.Do
            - Client.Get
            - Client.Head
            - Client.Post
            - Client.PostForm
            - Get
            - Head
            - ListenAndServe
            - ListenAndServeTLS
            - Post
            - PostForm
            - Serve
            - ServeTLS
            - Server.ListenAndServe
            - Server.ListenAndServeTLS
            - Server.ServeTLS
    - module: golang.org/x/net
      versions:
        - fixed: 0.7.0
      vulnerable_at: 0.6.1-0.20230213185550-547e7edf3873
      packages:
        - package: golang.org/x/net/http2
          symbols:
            - Transport.RoundTrip
            - Server.ServeConn
          derived_symbols:
            - ClientConn.Close
            - ClientConn.Ping
            - ClientConn.RoundTrip
            - ClientConn.Shutdown
            - ConfigureServer
            - ConfigureTransport
            - ConfigureTransports
            - ConnectionError.Error
            - ErrCode.String
            - FrameHeader.String
            - FrameType.String
            - FrameWriteRequest.String
            - Framer.ReadFrame
            - Framer.WriteContinuation
            - Framer.WriteData
            - Framer.WriteDataPadded
            - Framer.WriteGoAway
            - Framer.WriteHeaders
            - Framer.WritePing
            - Framer.WritePriority
            - Framer.WritePushPromise
            - Framer.WriteRSTStream
            - Framer.WriteRawFrame
            - Framer.WriteSettings
            - Framer.WriteSettingsAck
            - Framer.WriteWindowUpdate
            - GoAwayError.Error
            - ReadFrameHeader
            - Setting.String
            - SettingID.String
            - SettingsFrame.ForeachSetting
            - StreamError.Error
            - Transport.CloseIdleConnections
            - Transport.NewClientConn
            - Transport.RoundTripOpt
            - bufferedWriter.Flush
            - bufferedWriter.Write
            - chunkWriter.Write
            - clientConnPool.GetClientConn
            - connError.Error
            - dataBuffer.Read
            - duplicatePseudoHeaderError.Error
            - gzipReader.Close
            - gzipReader.Read
            - headerFieldNameError.Error
            - headerFieldValueError.Error
            - noDialClientConnPool.GetClientConn
            - noDialH2RoundTripper.RoundTrip
            - pipe.Read
            - priorityWriteScheduler.CloseStream
            - priorityWriteScheduler.OpenStream
            - pseudoHeaderError.Error
            - requestBody.Close
            - requestBody.Read
            - responseWriter.Flush
            - responseWriter.FlushError
            - responseWriter.Push
            - responseWriter.SetReadDeadline
            - responseWriter.SetWriteDeadline
            - responseWriter.Write
            - responseWriter.WriteHeader
            - responseWriter.WriteString
            - serverConn.CloseConn
            - serverConn.Flush
            - stickyErrWriter.Write
            - transportResponseBody.Close
            - transportResponseBody.Read
            - writeData.String
        - package: golang.org/x/net/http2/hpack
          symbols:
            - Decoder.parseFieldLiteral
            - Decoder.readString
          derived_symbols:
            - Decoder.DecodeFull
            - Decoder.Write
summary: Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
description: |-
    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.
ghsas:
    - GHSA-vvpx-j8f3-3w6h
credits:
    - Philippe Antoine (Catena cyber)
references:
    - report: https://go.dev/issue/57855
    - fix: https://go.dev/cl/468135
    - fix: https://go.dev/cl/468295
    - web: https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E
cve_metadata:
    id: CVE-2022-41723
    cwe: 'CWE 400: Uncontrolled Resource Consumption'
    references:
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE/
        - https://www.couchbase.com/alerts/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/
        - https://security.gentoo.org/glsa/202311-09