CVE Vulnerability

CVE-2019-8921

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.

3.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.5 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/ Exploit Patch
https://security.netapp.com/advisory/ntap-20211203-0002/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2021-11-29 08:15

Updated : 2022-11-07 05:26

NVD link : CVE-2019-8921

Mitre link : CVE-2019-8921

Products Affected
No products.
CWE
CWE-345