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  5. CVE-2021-25289

CVE-2021-25289: Out of bounds write in Pillow

March 29, 2021 (updated October 8, 2024)

An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.

References

  • github.com/advisories/GHSA-57h3-9rgr-c24m
  • github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-35.yaml
  • github.com/python-pillow/Pillow
  • github.com/python-pillow/Pillow/commit/3fee28eb9479bf7d59e0fa08068f9cc4a6e2f04c
  • github.com/python-pillow/Pillow/commit/cbfdde7b1f2295059a20a539ee9960f0bec7b299
  • nvd.nist.gov/vuln/detail/CVE-2021-25289
  • pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html
  • security.gentoo.org/glsa/202107-33

Code Behaviors & Features

Detect and mitigate CVE-2021-25289 with GitLab Dependency Scanning

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Affected versions

All versions before 8.1.1

Fixed versions

  • 8.1.1

Solution

Upgrade to version 8.1.1 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-787: Out-of-bounds Write

Source file

pypi/Pillow/CVE-2021-25289.yml

Spotted a mistake? Edit the file on GitLab.

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