Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Python | Pillow | < 8.2.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee7Patch
- https://github.com/python-pillow/Pillow/pull/5377Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing List
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fRelease NotesThird Party Advisory
- https://security.gentoo.org/glsa/202107-33Third Party Advisory
- https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee7Patch
- https://github.com/python-pillow/Pillow/pull/5377Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing List
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fRelease NotesThird Party Advisory
- https://security.gentoo.org/glsa/202107-33Third Party Advisory
FAQ
What is CVE-2021-28676?
CVE-2021-28676 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2021-28676?
CVE-2021-28676 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28676?
Check the references section above for vendor advisories and patch information. Affected products include: Python Pillow, Fedoraproject Fedora.