Resource Exhaustion Affecting python-devel package, versions <0:2.7.18-1.amzn2.0.5


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
4.68% (91st percentile)

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  • Snyk IDSNYK-AMZN2-PYTHONDEVEL-2863005
  • published8 Jun 2022
  • disclosed10 Mar 2022

Introduced: 10 Mar 2022

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

How to fix?

Upgrade Amazon-Linux:2 python-devel to version 0:2.7.18-1.amzn2.0.5 or higher.
This issue was patched in ALAS2-2022-1802.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-devel package and not the python-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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 Base Scores

version 3.1