Resource Exhaustion Affecting python27:2.7/python2-pysocks package, versions <0:1.6.8-6.module_el8.6.0+2781+fed64c13


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.42% (75th percentile)

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  • Snyk IDSNYK-ALMALINUX8-PYTHON27-5624550
  • published28 May 2023
  • disclosed10 May 2022

Introduced: 10 May 2022

CVE-2021-3733  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 python27:2.7/python2-pysocks to version 0:1.6.8-6.module_el8.6.0+2781+fed64c13 or higher.
This issue was patched in ALSA-2022:1821.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python27:2.7/python2-pysocks package and not the python27:2.7/python2-pysocks package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.

CVSS Scores

version 3.1