CVE-2022-41723 (GCVE-0-2022-41723)

Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-05-05 16:12
VLAI?
Title
Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net
Summary
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.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE 400: Uncontrolled Resource Consumption
Assigner
Go
References
Impacted products
Vendor Product Version
Go standard library net/http Affected: 0 , < 1.19.6 (semver)
Affected: 1.20.0-0 , < 1.20.1 (semver)
Create a notification for this product.
Credits
Philippe Antoine (Catena cyber)
Show details on NVD website
To clipboard 

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\"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\"}]}, {\"vendor\": \"golang.org/x/net\", \"product\": \"golang.org/x/net/http2/hpack\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"0.7.0\", \"versionType\": \"semver\"}], \"packageName\": \"golang.org/x/net/http2/hpack\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"programRoutines\": [{\"name\": \"Decoder.parseFieldLiteral\"}, {\"name\": \"Decoder.readString\"}, {\"name\": \"Decoder.DecodeFull\"}, {\"name\": \"Decoder.Write\"}]}], \"references\": [{\"url\": \"https://go.dev/issue/57855\"}, {\"url\": \"https://go.dev/cl/468135\"}, {\"url\": \"https://go.dev/cl/468295\"}, {\"url\": \"https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2023-1571\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE/\"}, {\"url\": \"https://www.couchbase.com/alerts/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/\"}, {\"url\": \"https://security.gentoo.org/glsa/202311-09\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE 400: Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"shortName\": \"Go\", \"dateUpdated\": \"2023-11-25T11:09:48.448Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-41723\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-05T16:12:28.159Z\", \"dateReserved\": \"2022-09-28T17:00:06.610Z\", \"assignerOrgId\": \"1bb62c36-49e3-4200-9d77-64a1400537cc\", \"datePublished\": \"2023-02-28T17:19:45.801Z\", \"assignerShortName\": \"Go\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.