Ubuntu.comUB:CVE-2021-41229CVE-2021-41229
6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
28.1%
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.
Notes
| Author | Note |
|---|---|
| sbeattie | introduced in d939483328489fb835bb425d36f7c7c73d52c388 (v4.0) |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | bluez | < 5.48-0ubuntu3.6 | UNKNOWN |
| ubuntu | 20.04 | noarch | bluez | < 5.53-0ubuntu3.4 | UNKNOWN |
| ubuntu | 21.04 | noarch | bluez | < 5.56-0ubuntu4.3 | UNKNOWN |
| ubuntu | 21.10 | noarch | bluez | < 5.60-0ubuntu2.1 | UNKNOWN |
| ubuntu | 22.04 | noarch | bluez | < 5.62-0ubuntu2 | UNKNOWN |
| ubuntu | 22.10 | noarch | bluez | < 5.62-0ubuntu2 | UNKNOWN |
| ubuntu | 23.04 | noarch | bluez | < 5.62-0ubuntu2 | UNKNOWN |
| ubuntu | 23.10 | noarch | bluez | < 5.62-0ubuntu2 | UNKNOWN |
| ubuntu | 16.04 | noarch | bluez | < any | UNKNOWN |
Related
6.5 Medium
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.3 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:A/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
28.1%