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.
References
| Link | Resource |
|---|---|
| https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html | Mailing 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.html | Mailing 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 |
Configurations
History
21 Nov 2024, 04:50
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html - Mailing List, Third Party Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20211203-0002/ - Third Party Advisory | |
| References | () https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/ - Exploit, Patch, Third Party Advisory |
Information
Published : 2021-11-29 08:15
Updated : 2024-11-21 04:50
NVD link : CVE-2019-8921
Mitre link : CVE-2019-8921
CVE.ORG link : CVE-2019-8921
JSON object : View
Products Affected
debian
- debian_linux
bluez
- bluez
linux
- linux_kernel
CWE
CWE-345
Insufficient Verification of Data Authenticity