CVE-2021-27921
Last modified
CVE-2021-27921 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.. EPSS estimates a 3.17% chance of exploitation in the next 30 days.
Description
Pillow before 8.1.2 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Pillow | < 8.1.1 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
- https://security.gentoo.org/glsa/202107-33Third Party Advisory
- https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.htmlRelease Notes, Vendor Advisory
- https://security.gentoo.org/glsa/202107-33Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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