CVE-2022-41717 (GCVE-0-2022-41717)

Vulnerability from cvelistv5 – Published: 2022-12-08 19:03 – Updated: 2025-02-13 16:33
VLAI
Title
Excessive memory growth in net/http and golang.org/x/net/http2
Summary
An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE 400: Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version CPE status
Go standard library net/http Affected: 0 , < 1.18.9 (semver)
Affected: 1.19.0-0 , < 1.19.4 (semver)
guessed Create a notification for this product.
golang.org/x/net golang.org/x/net/http2 Affected: 0 , < 0.4.0 (semver)
guessed Create a notification for this product.
Credits
Josselin Costanzi
Show details on NVD website
To clipboard 

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      "date": "2026-08-19",
      "epss": "0.05623",
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      "id": "CVE-2022-41717",
      "lastModified": "2024-11-21T07:23:43.713",
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\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WPEIZ7AMEJCZXU3FEJZMVRNHQZXX5P3I/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZSVEMQV5ROY5YW5QE3I57HT3ITWG5GCV/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://pkg.go.dev/vuln/GO-2022-1144\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/202311-09\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230120-0008/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "security@golang.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-770\"}]}]"
    },
    "microsoft_vex": {
      "current_release_date": "2026-02-18T03:20:12.000Z",
      "cve": "CVE-2022-41717",
      "id": "msrc_CVE-2022-41717",
      "initial_release_date": "2022-12-02T00:00:00.000Z",
      "product_status:fixed": "25",
      "product_status:known_affected": "25",
      "product_status:known_not_affected": "13",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "Excessive memory growth in net/http and golang.org/x/net/http2",
      "url": "https://msrc.microsoft.com/csaf/vex/2022/msrc_cve-2022-41717.json",
      "version": "13"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-41717\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2022-12-08T20:15:10.330\",\"lastModified\":\"2026-06-17T05:03:42.153\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An attacker can cause excessive memory growth in a Go server accepting HTTP/2 requests. HTTP/2 server connections contain a cache of HTTP header keys sent by the client. While the total number of entries in this cache is capped, an attacker sending very large keys can cause the server to allocate approximately 64 MiB per open connection.\"},{\"lang\":\"es\",\"value\":\"Un atacante puede provocar un crecimiento excesivo de la memoria en un servidor Go que acepta solicitudes HTTP/2. Las conexiones del servidor HTTP/2 contienen un cach\u00e9 de claves de encabezado HTTP enviadas por el cliente. Si bien el n\u00famero total de entradas en esta cach\u00e9 est\u00e1 limitado, un atacante que env\u00eda claves muy grandes puede hacer que el servidor asigne aproximadamente 64 MiB por conexi\u00f3n abierta.\"}],\"affected\":[{\"source\":\"security@golang.org\",\"affectedData\":[{\"vendor\":\"Go standard library\",\"product\":\"net/http\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pkg.go.dev\",\"packageName\":\"net/http\",\"programRoutines\":[{\"name\":\"http2serverConn.canonicalHeader\"},{\"name\":\"ListenAndServe\"},{\"name\":\"ListenAndServeTLS\"},{\"name\":\"Serve\"},{\"name\":\"ServeTLS\"},{\"name\":\"Server.ListenAndServe\"},{\"name\":\"Server.ListenAndServeTLS\"},{\"name\":\"Server.Serve\"},{\"name\":\"Server.ServeTLS\"},{\"name\":\"http2Server.ServeConn\"}],\"versions\":[{\"version\":\"0\",\"lessThan\":\"1.18.9\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"1.19.0-0\",\"lessThan\":\"1.19.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"golang.org/x/net\",\"product\":\"golang.org/x/net/http2\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://pkg.go.dev\",\"packageName\":\"golang.org/x/net/http2\",\"programRoutines\":[{\"name\":\"serverConn.canonicalHeader\"},{\"name\":\"Server.ServeConn\"}],\"versions\":[{\"version\":\"0\",\"lessThan\":\"0.4.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-770\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.18.9\",\"matchCriteriaId\":\"E0CD51B1-029E-442F-BE6A-772F4754D240\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.19.0\",\"versionEndExcluding\":\"1.19.4\",\"matchCriteriaId\":\"B6AEBFD1-DEE2-40E0-B65C-8C7885014797\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:golang:http2:*:*:*:*:*:go:*:*\",\"versionEndExcluding\":\"0.4.0\",\"matchCriteriaId\":\"BBFC0CE7-CD35-4FCF-A37A-DBC5D6DA16D2\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E30D0E6F-4AE8-4284-8716-991DFA48CC5D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CC559B26-5DFC-4B7A-A27C-B77DE755DFF9\"}]}]}],\"references\":[{\"url\":\"https://go.dev/cl/455635\",\"source\":\"security@golang.org\",\"tags\":[\"Patch\",\"Vendor 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-19T17:26:02+00:00",
      "cve": "CVE-2022-41717",
      "id": "CVE-2022-41717",
      "initial_release_date": "2022-11-30T00:00:00+00:00",
      "product_status:fixed": "2105",
      "product_status:known_affected": "138",
      "product_status:known_not_affected": "7592",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "golang: net/http: excessive memory growth in a Go server accepting HTTP/2 requests",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-41717.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-06-06T05:39:23Z",
      "cve": "CVE-2022-41717",
      "id": "CVE-2022-41717",
      "initial_release_date": "2023-02-15T03:23:26Z",
      "product_status:known_affected": "30",
      "product_status:recommended": "291",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-41717",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-41717.json",
      "version": "15"
    }
  }
}



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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.