SB2020051315 - Red Hat Enterprise Linux 7 update for python-virtualenv

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Main Vulnerability Database SB2020051315

SB2020051315 - Red Hat Enterprise Linux 7 update for python-virtualenv

Published: May 13, 2020 Updated: June 20, 2021

Security Bulletin ID SB2020051315
Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 33% Medium 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Credentials management (CVE-ID: CVE-2018-18074)

The vulnerability allows a remote attacker to access sensitive information on a targeted system.

The vulnerability exists due to the software does not remove the HTTP Authorization header when following an HTTPS-to-HTTP redirect with the same hostname. A remote attacker who is able to perform a man-in-the-middle attack can sniff network traffic in transit between two systems on the targeted network and access sensitive information, such as user credentials.

2) Information disclosure (CVE-ID: CVE-2018-20060)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to Authorization HTTP header is not removed from the HTTP request during request redirection in "urllib3/util/retry.py". A remote attacker can intercept the request and gain access to sensitive information, passed via Authorization HTTP header.


3) CRLF injection (CVE-ID: CVE-2019-11236)

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to insufficient filtration of user-supplied data passed via HTTP request parameters to urllib3 library. A remote attacker can pass specially crafted data that contains CRLF sequences and perform a spoofing attack.


Remediation

Install update from vendor's website.

References