id: PYSEC-2023-236
modified: 2023-11-16T20:25:23.801345Z
published: 2023-11-13T03:15:00Z
aliases:
- CVE-2023-47163
- GHSA-gw7g-qr8w-3448
details: Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal
  is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause
  a denial-of-service (DoS) condition.
affected:
- package:
    ecosystem: PyPI
    name: remarshal
    purl: pkg:pypi/remarshal
  ranges:
  - type: GIT
    events:
    - introduced: "0"
    - fixed: fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
    repo: https://github.com/remarshal-project/remarshal
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 0.17.1
  versions:
  - 0.10.0
  - 0.11.0
  - 0.11.1
  - 0.11.2
  - 0.12.0
  - 0.14.0
  - 0.15.0
  - 0.15.1
  - 0.16.0
  - 0.16.1
  - 0.17.0
  - 0.8.0
  - 0.9.0
  - 0.9.1
  - 0.9.2
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
references:
- type: WEB
  url: https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1
- type: FIX
  url: 
    https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
- type: WEB
  url: https://jvn.jp/en/jp/JVN86156389/
- type: ADVISORY
  url: https://github.com/advisories/GHSA-gw7g-qr8w-3448