Security Advisory

CVE-2021-21240

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-02-08 19:45:19
Last updated 2024-08-03 18:09:14
Assigner GitHub_M
State PUBLISHED

Description

httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with 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.