Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1nM3B2LXBqNWYtM2hmcc4AAxCV

mechanize Regular Expression Denial of Service vulnerability

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.

Permalink: https://github.com/advisories/GHSA-g3pv-pj5f-3hfq
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1nM3B2LXBqNWYtM2hmcc4AAxCV
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 1 year ago
Updated: 10 months ago

CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-g3pv-pj5f-3hfq, CVE-2021-32837
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-32837
• https://github.com/python-mechanize/mechanize/commit/dd05334448e9f39814bab044d2eaa5ef69b410d6
• https://github.com/python-mechanize/mechanize/blob/3acb1836f3fd8edc5a758a417dd46b53832ae3b5/mechanize/_urllib2_fork.py#L878-L879
• https://github.com/python-mechanize/mechanize/releases/tag/v0.4.6
• https://securitylab.github.com/advisories/GHSL-2021-108-python-mechanize-mechanize/
• https://lists.debian.org/debian-lts-announce/2023/06/msg00022.html
• https://github.com/advisories/GHSA-g3pv-pj5f-3hfq

Repository: https://github.com/python-mechanize/mechanize
Blast Radius: 23.7

Affected Packages