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Alpine Linux: CVE-2022-45061: Inefficient Algorithmic Complexity

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Alpine Linux: CVE-2022-45061: Inefficient Algorithmic Complexity

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
11/09/2022
Created
04/09/2024
Added
03/26/2024
Modified
04/09/2024

Description

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.

Solution(s)

  • alpine-linux-upgrade-python3

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