data/reports/GO-2022-1039.yaml

modules:
  - module: std
    versions:
      - fixed: 1.18.7
      - introduced: 1.19.0
        fixed: 1.19.2
    vulnerable_at: 1.19.1
    packages:
      - package: regexp/syntax
        symbols:
          - parser.push
          - parser.repeat
          - parser.factor
          - parse
        derived_symbols:
          - Parse
description: |
    Programs which compile regular expressions from untrusted sources may be
    vulnerable to memory exhaustion or denial of service.

    The parsed regexp representation is linear in the size of the input,
    but in some cases the constant factor can be as high as 40,000,
    making relatively small regexps consume much larger amounts of memory.

    After fix, each regexp being parsed is limited to a 256 MB memory
    footprint. Regular expressions whose representation would use more space
    than that are rejected. Normal use of regular expressions is unaffected.
credit: Adam Korczynski (ADA Logics) and OSS-Fuzz
references:
  - report: https://go.dev/issue/55949
  - fix: https://go.dev/cl/439356
  - web: https://groups.google.com/g/golang-announce/c/xtuG5faxtaU
cve_metadata:
    id: CVE-2022-41715
    cwe: 'CWE 400: Uncontrolled Resource Consumption'