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CVE-2018-15560: PyCryptodome integer overflow vulnerability

August 27, 2018 (updated October 21, 2024)

PyCryptodome before 3.6.6 has an integer overflow in the data_len variable in AESNI.c, related to the AESNI_encrypt and AESNI_decrypt functions, leading to the mishandling of messages shorter than 16 bytes.

References

  • github.com/Legrandin/pycryptodome
  • github.com/Legrandin/pycryptodome/issues/198
  • github.com/advisories/GHSA-hgg3-g7gr-66r7
  • github.com/pypa/advisory-database/tree/main/vulns/pycryptodome/PYSEC-2018-21.yaml
  • nvd.nist.gov/vuln/detail/CVE-2018-15560
  • whitehatck01.blogspot.com/2018/08/integer-overflow-vulnerability-in.html

Code Behaviors & Features

Detect and mitigate CVE-2018-15560 with GitLab Dependency Scanning

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Affected versions

All versions before 3.6.6

Fixed versions

  • 3.6.6

Solution

Upgrade to version 3.6.6 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-190: Integer Overflow or Wraparound

Source file

pypi/pycryptodome/CVE-2018-15560.yml

Spotted a mistake? Edit the file on GitLab.

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