CVE-2021-3570
linuxptp - security update
8.8
HIGH
CVSS 3.1
EPSS 3.0%
描述
A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.
如何修補 CVE-2021-3570
要修補 CVE-2021-3570,請將受影響套件升級到下列已修補版本。
- —升級至 3.1-2.1 或更新版本
- —升級至 1.8-1+deb9u1 或更新版本
- —升級至 1.9.2-1+deb10u1 或更新版本
CVE-2021-3570 正在被利用嗎?
低 — EPSS 為 3.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 3.1-2.1
- from 0, < 1.8-1+deb9u1
- from 0, < 1.9.2-1+deb10u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |