CVE-2022-21504

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The code in UEK6 U3 was missing an appropiate file descriptor count to be missing. This resulted in a use count error that allowed a file descriptor to a socket to be closed and freed while it was still in use by another portion of the kernel. An attack with local access can operate on the socket, and cause a denial of service. CVSS 3.1 Base Score 5.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

En el código de UEK6 U3 faltaba un recuento de descriptor de archivo adecuado para ser liberado. Esto daba lugar a un error de recuento de uso que permitía cerrar y liberar un descriptor de archivo de un socket mientras seguía siendo utilizado por otra parte del kernel. Un ataque con acceso local puede operar sobre el socket y causar una denegación de servicio. Puntuación de base CVSS 3.1 5.5 (impactos en la disponibilidad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-11-15 CVE Reserved
2022-06-14 CVE Published
2024-01-05 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/oracle/linux-uek/commit/49c68f5f892d8c2be00e0a89ff2a035422c03b59	2022-09-28

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				7 Search vendor "Oracle" for product "Linux" and version "7"		-		Affected
Oracle Search vendor "Oracle"		Linux Search vendor "Oracle" for product "Linux"				8 Search vendor "Oracle" for product "Linux" and version "8"		-		Affected