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  5. CVE-2021-28676

CVE-2021-28676: Potential infinite loop in Pillow

June 8, 2021 (updated October 11, 2024)

An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.

References

  • github.com/advisories/GHSA-7r7m-5h27-29hp
  • github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-92.yaml
  • github.com/python-pillow/Pillow
  • github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856
  • github.com/python-pillow/Pillow/pull/5377
  • lists.debian.org/debian-lts-announce/2021/07/msg00018.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL
  • nvd.nist.gov/vuln/detail/CVE-2021-28676
  • pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html
  • security.gentoo.org/glsa/202107-33

Code Behaviors & Features

Detect and mitigate CVE-2021-28676 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 8.2.0

Fixed versions

  • 8.2.0

Solution

Upgrade to version 8.2.0 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-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Source file

pypi/Pillow/CVE-2021-28676.yml

Spotted a mistake? Edit the file on GitLab.

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