CVE-2019-8921
bluez - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.94%
描述
An issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation. By crafting a malicious CSTATE, it is possible to trick the server into returning more bytes than the buffer actually holds, resulting in leaking arbitrary heap data. The root cause can be found in the function service_attr_req of sdpd-request.c. The server does not check whether the CSTATE data is the same in consecutive requests, and instead simply trusts that it is the same.
如何修補 CVE-2019-8921
要修補 CVE-2019-8921,請將受影響套件升級到下列已修補版本。
- —升級至 5.54-1 或更新版本
- —升級至 5.43-2+deb9u5 或更新版本
- —升級至 5.50-1.2~deb10u3 或更新版本
CVE-2019-8921 正在被利用嗎?
低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 5.54-1
- from 0, < 5.43-2+deb9u5
- from 0, < 5.50-1.2~deb10u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |