Resource Exhaustion Affecting python39-lxml package, versions <0:4.6.2-3.module+el8.5.0+20364+c7fe1181


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
4.68% (91st percentile)

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  • Snyk IDSNYK-ORACLE8-PYTHON39LXML-2590837
  • published10 Apr 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 Oracle:8 python39-lxml to version 0:4.6.2-3.module+el8.5.0+20364+c7fe1181 or higher.
This issue was patched in ELSA-2021-4160.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python39-lxml package and not the python39-lxml package as distributed by Oracle. See How to fix? for Oracle: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 Base Scores

version 3.1