CVE-2021-21240 log

Severity Medium
Remote Yes
Type Denial of service
In python-httplib2 before version 0.19.0, a malicious server which responds with a long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.
Group Package Affected Fixed Severity Status Ticket
AVG-1546 python-httplib2 0.18.1-4 0.19.0-1 Medium Fixed
Date Advisory Group Package Severity Type
27 Feb 2021 ASA-202102-35 AVG-1546 python-httplib2 Medium denial of service

The issue can be mitigated by using "httplib2.USE_WWW_AUTH_STRICT_PARSING = True".