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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 3.3 LOW

6.5^/10

CVSS v3.0 : MEDIUM

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

3.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:bluez:bluez:5.58:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Information

Published : 2021-11-12 15:15

Updated : 2022-11-07 09:25

NVD link : CVE-2021-41229

Mitre link : CVE-2021-41229

JSON object : View

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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Products Affected

debian

debian_linux

bluez

bluez

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