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PYSEC-2021-92

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / pillow

Introduced in: 0 Fixed in: 8.2.0

Fix pip install --upgrade 'pillow>=8.2.0'

References

https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos [WEB]
https://github.com/python-pillow/Pillow/pull/5377 [WEB]
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ [WEB]
https://github.com/advisories/GHSA-7r7m-5h27-29hp [ADVISORY]