Resource Exhaustion Affecting python2.7 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.34% (73rd percentile)

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  • Snyk IDSNYK-DEBIAN11-PYTHON27-5423190
  • published2 Sept 2021
  • disclosed10 Mar 2022

Introduced: 2 Sep 2021

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

How to fix?

There is no fixed version for Debian:11 python2.7.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python2.7 package and not the python2.7 package as distributed by Debian. See How to fix? for Debian:11 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