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CVE-2020-10571: Potential buffer overflow in psd-tools

March 16, 2020 (updated September 24, 2026)

An issue was discovered in psd-tools before 1.9.4. The Cython implementation of RLE decoding did not check for malformed PSD input data during decoding to the PIL.Image or NumPy format, leading to a Buffer Overflow.

References

  • github.com/advisories/GHSA-22jr-vc7j-g762
  • github.com/psd-tools/psd-tools/commit/fd51f8b4a52bc9c1c06d1035dfdf2cd920e87074
  • github.com/psd-tools/psd-tools/pull/198
  • github.com/psd-tools/psd-tools/releases/tag/v1.9.4
  • github.com/psd-tools/psd-tools/security/advisories/GHSA-22jr-vc7j-g762
  • github.com/pypa/advisory-database/tree/main/vulns/psd-tools/PYSEC-2020-91.yaml
  • nvd.nist.gov/vuln/detail/CVE-2020-10571

Code Behaviors & Features

Detect and mitigate CVE-2020-10571 with GitLab Dependency Scanning

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Affected versions

All versions starting from 1.8.37 before 1.9.4

Fixed versions

  • 1.9.4

Solution

Upgrade to version 1.9.4 or above.

Impact 9.8 CRITICAL

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

Learn more about CVSS

Weakness

  • CWE-754: Improper Check for Unusual or Exceptional Conditions

Source file

pypi/psd-tools/CVE-2020-10571.yml

Spotted a mistake? Edit the file on GitLab.

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