CVE-2025-8067
udisks2 - security update
描述
A flaw was found in the Udisks daemon, where it allows unprivileged users to create loop devices using the D-BUS system. This is achieved via the loop device handler, which handles requests sent through the D-BUS interface. As two of the parameters of this handle, it receives the file descriptor list and index specifying the file where the loop device should be backed. The function itself validates the index value to ensure it isn't bigger than the maximum value allowed. However, it fails to validate the lower bound, allowing the index parameter to be a negative value. Under these circumstances, an attacker can cause the UDisks daemon to crash or perform a local privilege escalation by gaining access to files owned by privileged users.
如何修補 CVE-2025-8067
要修補 CVE-2025-8067,請將受影響套件升級到下列已修補版本。
- —升級至 2.9.2-2+deb11u3 或更新版本
- —升級至 2.9.2-2+deb11u3 或更新版本
- —升級至 2.9.4-4+deb12u2 或更新版本
CVE-2025-8067 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.9.2-2+deb11u3
- from 0, < 2.9.2-2+deb11u3
- from 0, < 2.9.4-4+deb12u2
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H |