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.
https://github.com/python/cpython/pull/25916
https://bugzilla.redhat.com/show_bug.cgi?id=1995162
https://ubuntu.com/security/CVE-2021-3737
https://github.com/python/cpython/pull/26503
https://bugs.python.org/issue44022
https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html
https://security.netapp.com/advisory/ntap-20220407-0009/
https://www.oracle.com/security-alerts/cpujul2022.html
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
Source: MITRE
Published: 2022-03-04
Updated: 2023-05-24
Type: CWE-400
Base Score: 7.1
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 8.6
Severity: HIGH
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH