id: GO-2021-0069
modules:
    - module: std
      versions:
        - introduced: 1.14.0-0
          fixed: 1.14.12
        - introduced: 1.15.0-0
          fixed: 1.15.5
      vulnerable_at: 1.15.4
      packages:
        - package: math/big
          symbols:
            - nat.divRecursiveStep
          skip_fix: 'TODO: revisit this reason (fix appears to not work with Go <1.18)'
summary: Panic during division of very large numbers in math/big
description: |-
    A number of math/big.Int methods can panic when provided large inputs due to a
    flawed division method.
published: 2021-04-14T20:04:52Z
cves:
    - CVE-2020-28362
references:
    - fix: https://go.dev/cl/269657
    - fix: https://go.googlesource.com/go/+/1e1fa5903b760c6714ba17e50bf850b01f49135c
    - report: https://go.dev/issue/42552
    - web: https://groups.google.com/g/golang-announce/c/NpBGTTmKzpM/m/fLguyiM2CAAJ