// For flags

CVE-2022-3239

kernel: media: em28xx: initialize refcount before kref_get

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers em28xx_usb_probe() for the Empia 28xx based TV cards. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

Se ha encontrado un fallo de uso de memoria previamente liberada en el controlador video4linux del kernel de Linux en la forma en que el usuario desencadena em28xx_usb_probe() para las tarjetas de TV basadas en Empia 28xx. Un usuario local podría usar este fallo para bloquear el sistema o potencialmente escalar sus privilegios en el sistema

A use-after-free flaw was found in the Linux kernel’s video4linux driver in how a user triggers the em28xx_usb_probe() for the Empia 28xx-based TV cards. This flaw allows a local user to crash or potentially escalate their privileges on the system.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-09-19 CVE Reserved
  • 2022-09-19 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
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"
>= 3.15 < 4.14.295
Search vendor "Linux" for product "Linux Kernel" and version " >= 3.15 < 4.14.295"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.15 < 4.19.238
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.238"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 5.4.189
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.189"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.5 < 5.10.110
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.110"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.11 < 5.15.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.33"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.16 < 5.16.19
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 5.16.19"
-
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.17 < 5.17.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.17 < 5.17.2"
-
Affected