CVE-2021-28676

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Python Pillow

PublishedJun 2, 2021

First seenJun 2, 2021

How to fix

Update

python pillow8.2.0 or later
pillow8.2.0 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
security.gentoo.org/glsa/202107-33

Affected products

Product	Affected versions	Fixed in
python pillow	v < 8.2.0	8.2.0
fedoraproject fedora	33	—
pillowPyPI	v < 8.2.0	8.2.0

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