SB2022051138 - Red Hat Enterprise Linux 8 update for the python38:3.8 and python38-devel:3.8 modules

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2022051138

SB2022051138 - Red Hat Enterprise Linux 8 update for the python38:3.8 and python38-devel:3.8 modules

Published: May 11, 2022

Security Bulletin ID SB2022051138
Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) CRLF injection (CVE-ID: CVE-2022-0391)

The vulnerability allows a remote attacker to inject arbitrary data in server response.

The vulnerability exists due to insufficient validation of attacker-supplied data within the urllib.parse module in Python. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.


2) Infinite loop (CVE-ID: CVE-2021-3737)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop. A remote attacker who controls a malicious server can force the client to enter an infinite loop on a 100 Continue response.


3) Cross-site scripting (CVE-ID: CVE-2021-43818)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the HTML Cleaner in lxml.html. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


4) Resource management error (CVE-ID: CVE-2021-3733)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application within the AbstractBasicAuthHandler class in urllib. A remote attacker with control over the server can perform regular expression denial of service attack during authentication.


Remediation

Install update from vendor's website.

References