#VU58295 Resource management error in Python - CVE-2021-3733

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Main Vulnerability Database Vulnerabilities #VU58295

#VU58295 Resource management error in Python - CVE-2021-3733

Published: November 23, 2021


Vulnerability identifier: #VU58295
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3733
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Python
Software vendor:
Python.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application within the AbstractBasicAuthHandler class in urllib. A remote attacker with control over the server can perform regular expression denial of service attack during authentication.


Remediation

Install updates from vendor's website.

External links