CVE-2019-8921
The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementation.
Does this matter?
Lower severity and a low EPSS score (0.93%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.93% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-345
- Affected
- bluez/bluez · debian/debian linux
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.