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  5. CVE-2023-47163

CVE-2023-47163: Remarshal expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack

November 13, 2023 (updated October 26, 2024)

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.

References

  • github.com/advisories/GHSA-gw7g-qr8w-3448
  • github.com/pypa/advisory-database/tree/main/vulns/remarshal/PYSEC-2023-236.yaml
  • github.com/remarshal-project/remarshal
  • github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
  • github.com/remarshal-project/remarshal/releases/tag/v0.17.1
  • jvn.jp/en/jp/JVN86156389
  • nvd.nist.gov/vuln/detail/CVE-2023-47163

Code Behaviors & Features

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Affected versions

All versions before 0.17.1

Fixed versions

  • 0.17.1

Solution

Upgrade to version 0.17.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-400: Uncontrolled Resource Consumption
  • CWE-674: Uncontrolled Recursion

Source file

pypi/remarshal/CVE-2023-47163.yml

Spotted a mistake? Edit the file on GitLab.

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