CVE-2022-48642

netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()

It seems to me that percpu memory for chain stats started leaking since
commit 3bc158f8d0330f0a ("netfilter: nf_tables: map basechain priority to
hardware priority") when nft_chain_offload_priority() returned an error.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: netfilter: nf_tables: corrige la pérdida de memoria de percpu en nf_tables_addchain() Me parece que la memoria de percpu para las estadísticas de la cadena comenzó a perderse desde el commit 3bc158f8d0330f0a ("netfilter: nf_tables: asigna la prioridad de la cadena base al hardware prioridad") cuando nft_chain_offload_priority() devolvió un error.

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-25 CVE Reserved
2024-04-28 CVE Published
2024-04-29 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/3bc158f8d0330f0ac58597c023acca2234c14616	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88	2022-09-28
https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852	2022-09-28
https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714	2022-09-28
https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac	2022-09-20

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"				>= 5.3 < 5.10.146 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.3 < 5.10.146"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.3 < 5.15.71 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.3 < 5.15.71"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.3 < 5.19.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.3 < 5.19.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.3 < 6.0 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.3 < 6.0"		en		Affected