modules:
  - module: std
    versions:
      - fixed: 1.18.9
      - introduced: 1.19.0
        fixed: 1.19.4
    vulnerable_at: 1.19.3
    packages:
      - package: net/http
        symbols:
          - http2serverConn.canonicalHeader
        derived_symbols:
          - ListenAndServe
          - ListenAndServeTLS
          - Serve
          - ServeTLS
          - Server.ListenAndServe
          - Server.ListenAndServeTLS
          - Server.Serve
          - Server.ServeTLS
          - http2Server.ServeConn
  - module: golang.org/x/net
    versions:
      - fixed: 0.4.0
    vulnerable_at: 0.3.0
    packages:
      - package: golang.org/x/net/http2
        symbols:
          - serverConn.canonicalHeader
        derived_symbols:
          - Server.ServeConn
description: |
    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.
credit: Josselin Costanzi
references:
  - report: https://go.dev/issue/56350
  - fix: https://go.dev/cl/455717
  - fix: https://go.dev/cl/455635
  - web: https://groups.google.com/g/golang-announce/c/L_3rmdT0BMU/m/yZDrXjIiBQAJ
cve_metadata:
    id: CVE-2022-41717
    cwe: 'CWE 400: Uncontrolled Resource Consumption'