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- Snyk ID SNYK-CENTOS8-PLATFORMPYTHON-3135789
- published 19 Nov 2022
- disclosed 9 Nov 2022
How to fix?
There is no fixed version for
Note: Versions mentioned in the description apply only to the upstream
platform-python package and not the
platform-python package as distributed by
How to fix? for
Centos:8 relevant fixed versions and status.
An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname. For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16.