CVE-2021-4202
Severity Score
7.0
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
3
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.
Se encontró un fallo de uso de memoria previamente liberada en la función nci_request en el archivo net/nfc/nci/core.c en NFC Controller Interface (NCI) en el kernel de Linux. este fallo podría permitir a un atacante local con privilegios de usuario causar un problema de carrera de datos mientras es retirado el dispositivo, conllevando a un problema de escalada de privilegios
*Credits:
N/A
CVSS Scores
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
- 2022-01-10 CVE Reserved
- 2022-02-03 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- ---------- 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 (8)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2022/06/01/2 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2022/06/04/2 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2022/06/07/2 | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20220513-0002 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2036682 | 2023-11-07 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 4.4.294 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 4.4.294" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.5 < 4.9.292 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.9.292" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 4.14.257 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.14.257" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.15 < 4.19.219 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.219" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.20 < 5.4.163 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.163" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.5.0 < 5.10.82 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5.0 < 5.10.82" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11 < 5.15.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.5" | - |
Affected
| ||||||