FKIE_CVE-2022-41723
Vulnerability from fkie_nvd - Published: 2023-02-28 18:15 - Updated: 2026-06-17 05:03
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/
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.
References
{
"affected": [
{
"affectedData": [
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "net/http",
"product": "net/http",
"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": "Go standard library",
"versions": [
{
"lessThan": "1.19.6",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "1.20.1",
"status": "affected",
"version": "1.20.0-0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/net/http2",
"product": "golang.org/x/net/http2",
"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"
}
],
"vendor": "golang.org/x/net",
"versions": [
{
"lessThan": "0.7.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://pkg.go.dev",
"defaultStatus": "unaffected",
"packageName": "golang.org/x/net/http2/hpack",
"product": "golang.org/x/net/http2/hpack",
"programRoutines": [
{
"name": "Decoder.parseFieldLiteral"
},
{
"name": "Decoder.readString"
},
{
"name": "Decoder.DecodeFull"
},
{
"name": "Decoder.Write"
}
],
"vendor": "golang.org/x/net",
"versions": [
{
"lessThan": "0.7.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@golang.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2219CF76-6D17-487E-9B67-BC49E4743528",
"versionEndExcluding": "1.19.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:golang:go:1.20.0:-:*:*:*:*:*:*",
"matchCriteriaId": "B78574DF-045C-4A26-B0F5-8C082B24D9FD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:golang:hpack:*:*:*:*:*:go:*:*",
"matchCriteriaId": "CA68ED61-191E-4903-B65D-CBA7A0370B8E",
"versionEndExcluding": "0.7.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:golang:http2:*:*:*:*:*:go:*:*",
"matchCriteriaId": "3EBDC12D-E7B0-4138-B6B1-709E61703629",
"versionEndExcluding": "0.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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."
}
],
"id": "CVE-2022-41723",
"lastModified": "2026-06-17T05:03:42.900",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-41723",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-23T13:26:37.352634Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-02-28T18:15:09.980",
"references": [
{
"source": "security@golang.org",
"tags": [
"Patch"
],
"url": "https://go.dev/cl/468135"
},
{
"source": "security@golang.org",
"tags": [
"Patch"
],
"url": "https://go.dev/cl/468295"
},
{
"source": "security@golang.org",
"tags": [
"Issue Tracking"
],
"url": "https://go.dev/issue/57855"
},
{
"source": "security@golang.org",
"tags": [
"Mailing List",
"Vendor Advisory"
],
"url": "https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E"
},
{
"source": "security@golang.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/"
},
{
"source": "security@golang.org",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/"
},
{
"source": "security@golang.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/"
},
{
"source": "security@golang.org",
"tags": [
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],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/"
},
{
"source": "security@golang.org",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RLBQ3A7ROLEQXQLXFDLNJ7MYPKG5GULE/"
},
{
"source": "security@golang.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/"
},
{
"source": "security@golang.org",
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XX3IMUTZKRQ73PBZM4E2JP4BKYH4C6XE/"
},
{
"source": "security@golang.org",
"tags": [
"Vendor Advisory"
],
"url": "https://pkg.go.dev/vuln/GO-2023-1571"
},
{
"source": "security@golang.org",
"url": "https://security.gentoo.org/glsa/202311-09"
},
{
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"url": "https://www.couchbase.com/alerts/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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{
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"url": "https://go.dev/cl/468295"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://go.dev/issue/57855"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Vendor Advisory"
],
"url": "https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4BUK2ZIAGCULOOYDNH25JPU6JBES5NF2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4MA5XS5DAOJ5PKKNG5TUXKPQOFHT5VBC/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/REMHVVIBDNKSRKNOTV7EQSB7CYQWOUOU/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGW7GE2Z32ZT47UFAQFDRQE33B7Q7LMT/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T7N5GV4CHH6WAGX3GFMDD3COEOVCZ4RI/"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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{
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"url": "https://security.gentoo.org/glsa/202311-09"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.netapp.com/advisory/ntap-20230331-0010/"
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{
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"url": "https://www.couchbase.com/alerts/"
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],
"sourceIdentifier": "security@golang.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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