modules:
  - module: github.com/holiman/uint256
    versions:
      - introduced: 0.1.0
      - fixed: 1.1.1
    vulnerable_at: 1.1.0
    packages:
      - package: github.com/holiman/uint256
        symbols:
          - udivrem
        derived_symbols:
          - Int.AddMod
          - Int.Div
          - Int.Mod
          - Int.MulMod
          - Int.SDiv
          - Int.SMod
description: |
    Due to improper bounds checking, certain mathmatical operations can cause a panic via an
    out of bounds read. If this package is used to process untrusted user inputs, this may be used
    as a vector for a denial of service attack.
published: 2021-07-28T18:08:05Z
cves:
  - CVE-2020-26242
ghsas:
  - GHSA-jm5c-rv3w-w83m
credit: Dima Stebaev
references:
  - fix: https://github.com/holiman/uint256/pull/80
  - fix: https://github.com/holiman/uint256/commit/6785da6e3eea403260a5760029e722aa4ff1716d