Medium: python-pip

Issue Overview:

The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn’t given via proxy_config) doesn’t verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted. (CVE-2021-28363)

Affected Packages:

python-pip

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update python-pip to update your system.

New Packages:

noarch:  
    python2-pip-20.2.2-1.amzn2.0.3.noarch  
    python3-pip-20.2.2-1.amzn2.0.3.noarch  
    python-pip-wheel-20.2.2-1.amzn2.0.3.noarch  
  
src:  
    python-pip-20.2.2-1.amzn2.0.3.src  

Additional References

Red Hat: CVE-2021-28363

Mitre: CVE-2021-28363