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CVE-2022-45061

7.5 · HIGH

An issue was discovered in Python before 3.11.1.

Published Nov 9, 2022CWE-407EPSS 2.67%

Overview

CVE-2022-45061 is a high-severity vulnerability. It was published on November 9, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/python/cpython/issues/98433Reflists.debian.org/debian-lts-announce/2023/05/msg00024.htmlReflists.debian.org/debian-lts-announce/2023/06/msg00039.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2AOUKI72ACV6CHY2QUFO6VK2DNMVJ2MB/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35YDIWCUMWTMDBWFRAVENFH6BLB65D6S/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4WBZJNSALFGMPYTINIF57HAAK46U72WQ/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/63FS6VHY4DCS74HBTEINUDOECQ2X6ZCH/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WQPHKGNXUJC3TC3BDW5RKGROWRJVSFR/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3YI6JYARWU6GULWOHNUROSACT54XFFS/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4MYQ3IV6NWA4CKSXEHW45CH2YNDHEPH/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-45061?

CVE-2022-45061 is a high-severity vulnerability. It was published on November 9, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-45061?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-45061?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-45061?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-45061 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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