7.9
CVE-2021-3752
- EPSS 0.03%
- Published 16.02.2022 19:15:08
- Last modified 21.11.2024 06:22:20
- Source secalert@redhat.com
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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.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.12 < 4.4.293
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.291
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.256
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.218
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.160
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.80
Linux ≫ Linux Kernel Version >= 5.11 < 5.14.19
Linux ≫ Linux Kernel Version >= 5.15 < 5.15.3
Redhat ≫ Virtualization Host Version4.0
Fedoraproject ≫ Fedora Version34
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Redhat ≫ Enterprise Linux For Real Time Version7
Redhat ≫ Enterprise Linux For Real Time For Nfv Version7
Netapp ≫ H300s Firmware Version-
Netapp ≫ H500s Firmware Version-
Netapp ≫ H700s Firmware Version-
Netapp ≫ H300e Firmware Version-
Netapp ≫ H500e Firmware Version-
Netapp ≫ H700e Firmware Version-
Netapp ≫ H410s Firmware Version-
Netapp ≫ H410c Firmware Version-
Debian ≫ Debian Linux Version9.0
Debian ≫ Debian Linux Version10.0
Oracle ≫ Communications Cloud Native Core Binding Support Function Version22.1.3
Oracle ≫ Communications Cloud Native Core Network Exposure Function Version22.1.1
Oracle ≫ Communications Cloud Native Core Policy Version22.2.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.03% | 0.069 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 7.1 | 1.2 | 5.9 |
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 7.9 | 5.5 | 10 |
AV:A/AC:M/Au:N/C:C/I:C/A:C
|
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that 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 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.