CVE-2019-8921
MEDIUM6.5EPSS 0.05%bluez - security update
發布日:2021/11/29修改日:2026/4/28
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.
受影響套件(3)
- Debian/bluezfrom 0, < 5.54-1
- Debian/bluezfrom 0, < 5.43-2+deb9u5
- Debian/bluezfrom 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 |