CVE-2021-32837

mechanize, a library for automatically interacting with HTTP web servers, contains a regular expression that is vulnerable to regular expression denial of service (ReDoS) prior to version 0.4.6. If a web server responds in a malicious way, then mechanize could crash. Version 0.4.6 has a patch for the issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879	Exploit Third Party Advisory
https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6	Patch Third Party Advisory
https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mechanize_project:mechanize:*:*:*:*:*:python:*:*

History

No history.

Information

Published : 2023-01-17 22:15

Updated : 2023-06-20 17:15

NVD link : CVE-2021-32837

Mitre link : CVE-2021-32837

CVE.ORG link : CVE-2021-32837

JSON object : View

Products Affected

mechanize_project

mechanize

CWE

CWE-1333

Inefficient Regular Expression Complexity

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