CVE-2019-8921
Last modified
CVE-2019-8921 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.94% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bluez | Bluez | <= 5.48 |
| Debian | Debian Linux | 10.0 |
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0002/Third Party Advisory
- https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211203-0002/Third Party Advisory
- https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/Exploit, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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