CVE-2021-25292
MEDIUMCVSS 6.5/10EPSS 1.64%
Last modified
CVE-2021-25292 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.. EPSS estimates a 1.64% chance of exploitation in the next 30 days.
Description
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Pillow | < 8.1.1 |
References
- https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.htmlRelease Notes, Vendor Advisory
- 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
What is CVE-2021-25292?
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
How severe is CVE-2021-25292?
CVE-2021-25292 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25292?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-25292?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST