CVE-2021-25292
python-pillow: Regular expression DoS in PDF format parser
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se detectó un problema en Pillow versiones anteriores a 8.1.1. El analizador de PDF permite un ataque DoS (ReDoS) de expresión regular por medio de un archivo PDF diseñado debido a una regex de retroceso catastrófica
A flaw was found in python-pillow. The PDF parser has a catastrophic backtracking regex that could be used as a DOS attack.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-01-17 CVE Reserved
- 2021-03-12 CVE Published
- 2023-12-02 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-1333: Inefficient Regular Expression Complexity
CAPEC
References (4)
URL | Tag | Source |
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URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
---|---|---|
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html | 2023-08-08 | |
https://security.gentoo.org/glsa/202107-33 | 2023-08-08 | |
https://access.redhat.com/security/cve/CVE-2021-25292 | 2021-11-09 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1934699 | 2021-11-09 |