CVE-2021-28676

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.

Score

CVSS 3.1 7.5 High

Status

Modified - cve@mitre.org

Published

2021-06-02

Last modified

2024-08-03

Weaknesses

CWE-835

Affected products

• Fedora (Fedoraproject)
• Pillow (Python)

References

• https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856
• https://github.com/python-pillow/Pillow/pull/5377
• https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAG…
• https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos
• https://security.gentoo.org/glsa/202107-33