id: GO-2023-1495
modules:
    - module: golang.org/x/net
      versions:
        - introduced: 0.0.0-20220524220425-1d687d428aca
          fixed: 0.1.1-0.20221104162952-702349b0e862
      vulnerable_at: 0.1.1-0.20221104145632-7a676822c292
      packages:
        - package: golang.org/x/net/http2/h2c
          symbols:
            - h2cHandler.ServeHTTP
            - h2cUpgrade
summary: Request smuggling due to improper request handling in golang.org/x/net/http2/h2c
description: |-
    A request smuggling attack is possible when using MaxBytesHandler.

    When using MaxBytesHandler, the body of an HTTP request is not fully consumed.
    When the server attempts to read HTTP2 frames from the connection, it will
    instead be reading the body of the HTTP request, which could be
    attacker-manipulated to represent arbitrary HTTP2 requests.
ghsas:
    - GHSA-fxg5-wq6x-vr4w
credits:
    - John Howard (Google)
references:
    - report: https://go.dev/issue/56352
    - fix: https://go.dev/cl/447396
cve_metadata:
    id: CVE-2022-41721
    cwe: 'CWE 444: Inconsistent Interpretation of HTTP Requests ("HTTP Request/Response Smuggling)'
    references:
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3H3EWQXM2XL5AGBX6UL443JEJ3GQXJN/
        - https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5DXTLLWN6HKI5I35EUZRBISTNZJ75GP/