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CVE-2021-21240

Status Candidate

Overview

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.

Related Files

Red Hat Security Advisory 2021-2116-01
Posted May 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2116-01 - A comprehensive HTTP client library that supports many features left out of other HTTP libraries. Issues addressed include crlf injection and denial of service vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2020-11078, CVE-2021-21240
MD5 | 8ffa2daa5c90e7cf947d54066b7a9160
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