modules:
  - module: std
    versions:
      - fixed: 1.17.11
      - introduced: 1.18.0
        fixed: 1.18.3
    packages:
      - package: crypto/rand
        goos:
          - windows
        symbols:
          - Read
description: |
    On Windows, rand.Read will hang indefinitely if passed a buffer larger than
    1 << 32 - 1 bytes.
published: 2022-06-09T01:43:37Z
credit: Davis Goodin and Quim Muntal of Microsoft
references:
  - fix: https://go.dev/cl/402257
  - fix: https://go.googlesource.com/go/+/bb1f4416180511231de6d17a1f2f55c82aafc863
  - report: https://go.dev/issue/52561
  - web: https://groups.google.com/g/golang-announce/c/TzIC9-t8Ytg/m/IWz5T6x7AAAJ
cve_metadata:
    id: CVE-2022-30634
    cwe: 'CWE-835: Loop with Unreachable Exit Condition (''Infinite Loop'')'
    description: |
        Infinite loop in Read in crypto/rand before Go 1.17.11 and Go 1.18.3 on
        Windows allows attacker to cause an indefinite hang by passing a buffer
        larger than 1 << 32 - 1 bytes.