CVE Vulnerability

CVE-2021-41229

BlueZ is a Bluetooth protocol stack for Linux. In affected versions a vulnerability exists in sdp_cstate_alloc_buf which allocates memory which will always be hung in the singly linked list of cstates and will not be freed. This will cause a memory leak over time. The data can be a very large object, which can be caused by an attacker continuously sending sdp packets and this may cause the service of the target device to crash.

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 NONE

Integrity Impact NONE

Availability Impact PARTIAL

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 NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00022.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20211203-0004/ 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:a:bluez:bluez:5.58:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2021-11-12 11:15

Updated : 2022-11-07 05:25

NVD link : CVE-2021-41229

Mitre link : CVE-2021-41229

Products Affected
No products.
CWE
CWE-401