// For flags

CVE-2022-47946

 

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can be skipped. An attack can occur in some situations by forking a process and then quickly terminating it. NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of io_sqpoll_wait_sq.

Se descubrió un problema en el kernel de Linux 5.10.x anterior a 5.10.155. Un use after free en io_sqpoll_wait_sq en fs/io_uring.c permite a un atacante bloquear el kernel, lo que resulta en denegación de servicio. Finish_wait se puede omitir. En algunas situaciones puede ocurrir un ataque al bifurcar un proceso y luego finalizarlo rápidamente. NOTA: las versiones posteriores del kernel, como la serie a largo plazo 5.15, cambiaron sustancialmente la implementación de io_sqpoll_wait_sq.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-12-23 CVE Reserved
  • 2022-12-23 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-08-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
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"
 >= 5.10 < 5.10.155
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.10.155"
-
Affected