CVE-2022-41723 (GCVE-0-2022-41723)
Vulnerability from cvelistv5 – Published: 2023-02-28 17:19 – Updated: 2025-05-05 16:12
VLAI
EPSS
VEX
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)
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
References
15 references
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Go standard library | net/http |
Affected:
0 , < 1.19.6
(semver)
Affected: 1.20.0-0 , < 1.20.1 (semver) |
guessed | |
| golang.org/x/net | golang.org/x/net/http2 |
Affected:
0 , < 0.7.0
(semver)
|
guessed | |
| golang.org/x/net | golang.org/x/net/http2/hpack |
Affected:
0 , < 0.7.0
(semver)
|
guessed |
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"id": "CVE-2022-41723",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-04-23T13:26:37.352634Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "NVD-CWE-Other",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-05-05T13:06:39.980Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"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"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Philippe Antoine (Catena cyber)"
}
],
"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": [
{
"description": "CWE 400: Uncontrolled Resource Consumption",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-11-25T11:09:48.448Z",
"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"shortName": "Go"
},
"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"
}
],
"title": "Denial of service via crafted HTTP/2 stream in net/http and golang.org/x/net"
}
},
"cveMetadata": {
"assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
"assignerShortName": "Go",
"cveId": "CVE-2022-41723",
"datePublished": "2023-02-28T17:19:45.801Z",
"dateReserved": "2022-09-28T17:00:06.610Z",
"dateUpdated": "2025-05-05T16:12:28.159Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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