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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 13:26 UTC
CWE
  • CWE 400: Uncontrolled Resource Consumption
  • NVD-CWE-Other
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.
golang.org/x/net golang.org/x/net/http2 Affected: 0 , < 0.7.0 (semver)
Create a notification for this product.
golang.org/x/net golang.org/x/net/http2/hpack Affected: 0 , < 0.7.0 (semver)
Create a notification for this product.
Credits
Philippe Antoine (Catena cyber)
Show details on NVD website
To clipboard 

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      "published": "2023-02-28T18:15:09.980",
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      "sourceIdentifier": "security@golang.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T14:57:45.000Z",
      "cve": "CVE-2022-41723",
      "id": "msrc_CVE-2022-41723",
      "initial_release_date": "2023-02-01T00:00:00.000Z",
      "product_status:fixed": "6",
      "product_status:known_affected": "6",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net",
      "url": "https://msrc.microsoft.com/csaf/vex/2023/msrc_cve-2022-41723.json",
      "version": "6"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-41723\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2023-02-28T18:15:09.980\",\"lastModified\":\"2026-06-17T05:03:42.900\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"security@golang.org\",\"affectedData\":[{\"vendor\":\"Go standard 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-14T10:31:13+00:00",
      "cve": "CVE-2022-41723",
      "id": "CVE-2022-41723",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "1556",
      "product_status:known_affected": "284",
      "product_status:known_not_affected": "11950",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-41723.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-10T16:44:29Z",
      "cve": "CVE-2022-41723",
      "id": "CVE-2022-41723",
      "initial_release_date": "2023-02-16T03:03:08Z",
      "product_status:known_affected": "53",
      "product_status:known_not_affected": "207",
      "product_status:recommended": "779",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-41723",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-41723.json",
      "version": "86"
    },
    "vulnrichment": {
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\"https://security.gentoo.org/glsa/202311-09\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T12:49:43.617Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-41723\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-23T13:26:37.352634Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"NVD-CWE-Other\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-05T13:06:39.980Z\"}}], \"cna\": {\"title\": \"Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net\", \"credits\": [{\"lang\": \"en\", \"value\": \"Philippe Antoine (Catena cyber)\"}], \"affected\": [{\"vendor\": \"Go standard library\", \"product\": \"net/http\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"1.19.6\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.20.0-0\", \"lessThan\": \"1.20.1\", \"versionType\": \"semver\"}], \"packageName\": \"net/http\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"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\"}]}, {\"vendor\": \"golang.org/x/net\", \"product\": \"golang.org/x/net/http2\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"0.7.0\", \"versionType\": \"semver\"}], \"packageName\": \"golang.org/x/net/http2\", \"collectionURL\": \"https://pkg.go.dev\", \"defaultStatus\": \"unaffected\", \"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\": 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{\"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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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.