CVE-2021-20322
7.4
HIGH
CVSS 3.1
EPSS 6.9%
描述
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
如何修補 CVE-2021-20322
要修補 CVE-2021-20322,請將受影響套件升級到下列已修補版本。
- —升級至 5.10.70-1 或更新版本
CVE-2021-20322 正在被利用嗎?
中等 — EPSS 為 6.9%,可持續追蹤但非最高優先。
受影響套件(1)
- from 0, < 5.10.70-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |