Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2021-3572: A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. CVE-2021-28363: A flaw was found in python-urllib3. SSL certificate validation is omitted 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.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | python-pip-wheel | 0:20.2.2-1.amzn2.0.3 |
| Amazon Linux · 2 | python2-pip | 0:20.2.2-1.amzn2.0.3 |
| Amazon Linux · 2 | python3-pip | 0:20.2.2-1.amzn2.0.3 |
Vulnerabilities 2
-
Medium 6.5
Using default SSLContext for HTTPS requests in an HTTPS proxy doesn't verify certificate hostname for proxy connection
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 c…
-
Medium 5.7CVE-2021-3572 Public exploit
Improper Input Validation in pip
A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This i…