QID 982955

QID 982955: Python (pip) Security Update for httplib2 (GHSA-93xj-8mrv-444m)

Security update has been released for httplib2 to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

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.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Version 0.19.0 contains new implementation of auth headers parsing, using pyparsing library.
https://github.com/httplib2/httplib2/pull/182Workaround:
```py
import httplib2
httplib2.USE_WWW_AUTH_STRICT_PARSING = True
```

Vendor References

GHSA-93xj-8mrv-444m - github.com/advisories/GHSA-93xj-8mrv-444m

CVEs related to QID 982955

CVE-2021-21240 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-93xj-8mrv-444m	httplib2		github.com/advisories/GHSA-93xj-8mrv-444m

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