CVE-2022-45061
描述
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.
如何修補 CVE-2022-45061
要修補 CVE-2022-45061,請將受影響套件升級到下列已修補版本。
- —升級至 3.9.16-r0 或更新版本
- —升級至 3.7.16 或更新版本
- —升級至 3.7.16 或更新版本
- —升級至 3.7.16 或更新版本
- —升級至 7.3.5+dfsg-2+deb11u4 或更新版本
- —未列出修補版本
- —升級至 3.11.1-1 或更新版本
- —升級至 3.9.2-1+deb11u2 或更新版本
CVE-2022-45061 正在被利用嗎?
低 — EPSS 為 2.5%,目前沒有觀察到大規模利用活動。
受影響套件(8)
- from 0, < 3.9.16-r0
- from 0, < 3.7.16, >= 3.10.0, < 3.10.9, >= 3.11.0, < 3.11.1, >= 3.8.0, < 3.8.16, >= 3.9.0, < 3.9.16
- from 0, < 3.7.16, >= 3.10.0, < 3.10.9, >= 3.11.0, < 3.11.1, >= 3.8.0, < 3.8.16, >= 3.9.0, < 3.9.16
- from 0, < 3.7.16, >= 3.10.0, < 3.10.9, >= 3.11.0, < 3.11.1, >= 3.8.0, < 3.8.16, >= 3.9.0, < 3.9.16
- from 0, < 7.3.5+dfsg-2+deb11u4
- from 0
- from 0, < 3.11.1-1
- from 0, < 3.9.2-1+deb11u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |