CVE-2021-3752
kernel: possible use-after-free in bluetooth module
Severity Score
7.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha encontrado un fallo de uso de memoria previamente liberada en el subsistema Bluetooth del kernel de Linux en la forma en que las llamadas de usuario son conectadas al socket y son desconectadas simultáneamente debido a una condición de carrera. Este fallo permite a un usuario bloquear el sistema o escalar sus privilegios. La mayor amenaza de esta vulnerabilidad es para la confidencialidad, la integridad y la disponibilidad del sistema
Red Hat Advanced Cluster Management for Kubernetes 2.5.0 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include privilege escalation and traversal vulnerabilities.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-08-31 CVE Reserved
- 2022-02-03 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-03-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-416: Use After Free
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | Mailing List |
|
| https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org | X_refsource_misc | |
| https://security.netapp.com/advisory/ntap-20220318-0009 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://www.openwall.com/lists/oss-security/2021/09/15/4 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://www.oracle.com/security-alerts/cpujul2022.html | 2023-11-09 |
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1999544 | 2022-05-10 | |
| https://www.debian.org/security/2022/dsa-5096 | 2023-11-09 | |
| https://access.redhat.com/security/cve/CVE-2021-3752 | 2022-05-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | H300s Firmware Search vendor "Netapp" for product "H300s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H300s Search vendor "Netapp" for product "H300s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H500s Firmware Search vendor "Netapp" for product "H500s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H500s Search vendor "Netapp" for product "H500s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H700s Firmware Search vendor "Netapp" for product "H700s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H700s Search vendor "Netapp" for product "H700s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H300e Firmware Search vendor "Netapp" for product "H300e Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H300e Search vendor "Netapp" for product "H300e" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H500e Firmware Search vendor "Netapp" for product "H500e Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H500e Search vendor "Netapp" for product "H500e" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H700e Firmware Search vendor "Netapp" for product "H700e Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H700e Search vendor "Netapp" for product "H700e" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H410s Firmware Search vendor "Netapp" for product "H410s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H410s Search vendor "Netapp" for product "H410s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H410c Firmware Search vendor "Netapp" for product "H410c Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H410c Search vendor "Netapp" for product "H410c" | - | - |
Safe
|
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.12 < 4.4.293 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.12 < 4.4.293" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.5 < 4.9.291 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.9.291" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 4.14.256 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.14.256" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 4.19.218 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.218" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 5.4.160 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.160" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.5 < 5.10.80 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.80" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11 < 5.14.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.14.19" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15 < 5.15.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15 < 5.15.3" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | 3scale Search vendor "Redhat" for product "3scale" | 2.0 Search vendor "Redhat" for product "3scale" and version "2.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Virtualization Host Search vendor "Redhat" for product "Virtualization Host" | 4.0 Search vendor "Redhat" for product "Virtualization Host" and version "4.0" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux For Real Time Search vendor "Redhat" for product "Enterprise Linux For Real Time" | 7 Search vendor "Redhat" for product "Enterprise Linux For Real Time" and version "7" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux For Real Time For Nfv Search vendor "Redhat" for product "Enterprise Linux For Real Time For Nfv" | 7 Search vendor "Redhat" for product "Enterprise Linux For Real Time For Nfv" and version "7" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Cloud Native Core Binding Support Function Search vendor "Oracle" for product "Communications Cloud Native Core Binding Support Function" | 22.1.3 Search vendor "Oracle" for product "Communications Cloud Native Core Binding Support Function" and version "22.1.3" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Cloud Native Core Network Exposure Function Search vendor "Oracle" for product "Communications Cloud Native Core Network Exposure Function" | 22.1.1 Search vendor "Oracle" for product "Communications Cloud Native Core Network Exposure Function" and version "22.1.1" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy" | 22.2.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "22.2.0" | - |
Affected
| ||||||