CVE-2023-5972

Kernel: the nfta_inner_num and nfta_expr_name netlink attributes accessed without checking its presence in nft_inner.c

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.

Se encontró una falla de desreferencia de puntero nulo en la funcionalidad nft_inner.c de netfilter en el kernel de Linux. Este problema podría permitir que un usuario local bloquee el sistema o aumente sus privilegios en el sistema.

*Credits: Red Hat would like to thank Xingyuan Mo (IceSword Lab) for reporting this issue.

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

2023-11-06 CVE Reserved
2023-11-23 CVE Published
2023-11-24 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (4)

URL	Tag	Source
https://access.redhat.com/security/cve/CVE-2023-5972	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2248189	2023-11-30
https://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7	2023-11-30
https://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80	2023-11-30

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"				>= 6.2.1 <= 6.5.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.2.1 <= 6.5.10"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc5		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc6		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc7		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2 Search vendor "Linux" for product "Linux Kernel" and version "6.2"		rc8		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc5		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.2.0 Search vendor "Linux" for product "Linux Kernel" and version "6.2.0"		rc6		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc5		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6"		rc6		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				39 Search vendor "Fedoraproject" for product "Fedora" and version "39"		-		Affected