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.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| active-iq-unified-manager | — | — |
| bootstrap-os | — | — |
| e-series-performance-analyzer | — | — |
| element-software | — | — |
| fedora | — | — |
| hci | — | — |
| libpython | — | — |
| management-services-for-element-software | — | — |
| ontap-select-deploy-administration-utility | — | — |
| python | — | — |
| python-min | — | — |
References
Similar Threats
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- Medium CVE-2022-2056
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