CVE-2021-3752
7.1
Vector
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.2 / Impact: 5.9
Source: NVD
Description
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Affected (28)
Products: Linux: Linux Kernel · Fedoraproject: Fedora · Redhat: 3scale, Enterprise Linux, Enterprise Linux For Real Time, Enterprise Linux For Real Time For Nfv, Virtualization Host · +3 more
Show all products
Linux: Linux Kernel · Fedoraproject: Fedora · Redhat: 3scale, Enterprise Linux, Enterprise Linux For Real Time, Enterprise Linux For Real Time For Nfv, Virtualization Host · Netapp: H300s Firmware, H500s Firmware, H700s Firmware, H300e Firmware, H500e Firmware, H700e Firmware, H410s Firmware, H410c Firmware · Debian: Debian Linux · Oracle: Communications Cloud Native Core Binding Support Function, Communications Cloud Native Core Network Exposure Function, Communications Cloud Native Core Policy
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| 2.6.12 ≤ version < 4.4.293 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 34 | |
| Version 2.0 | |
| Version 7.0 | |
| Version 7 | |
| Version 7 | |
| Version 4.0 |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H300s | All versions |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H500s | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H700s | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H300e | All versions |
Configuration G
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H500e | All versions |
Configuration H
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H700e | All versions |
Configuration I
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H410s | All versions |
Configuration J
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Netapp H410c | All versions |
Configuration K
| Vulnerable Software | Affected Versions |
|---|---|
| Version 10.0 |
Configuration L
| Vulnerable Software | Affected Versions |
|---|---|
| Version 22.1.3 | |
| Version 22.1.1 | |
| Version 22.2.0 |
Related CWEs
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
References (16)
Source: secalert@redhat.com
Issue TrackingThird Party Advisory
Source: secalert@redhat.com
Mailing ListThird Party Advisory
Source: secalert@redhat.com
Mailing ListThird Party Advisory
Source: secalert@redhat.com
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
ExploitMailing ListThird Party Advisory
Source: secalert@redhat.com
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitMailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Timeline
No history available yet.