Synopsis
The remote FreeBSD host is missing a security-related update.
Description
Python reports :
The AbstractBasicAuthHandler class of the urllib.request module uses an inefficient regular expression which can be exploited by an attacker to cause a denial of service. Fix the regex to prevent the catastrophic backtracking. Vulnerability reported by Ben Caller and Matt Schwager.
Disallow control characters in hostnames in http.client, addressing CVE-2019-18348. Such potentially malicious header injection URLs now cause a InvalidURL to be raised.
Disallow CR or LF in email.headerregistry.Address arguments to guard against header injection attacks.
Solution
Update the affected package.