A flaw was found in python. An improperly handled HTTP...

Vulnerability Description

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

References

• https://bugs.python.org/issue44022
• https://github.com/python/cpython/pull/25916
• https://bugzilla.redhat.com/show_bug.cgi?id=1995162
• https://github.com/python/cpython/pull/26503
• https://ubuntu.com/security/CVE-2021-3737
• https://www.oracle.com/security-alerts/cpujul2022.html
• https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html
• https://security.netapp.com/advisory/ntap-20220407-0009/
• https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
• https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html