CVE-2023-6622

Kernel: null pointer dereference vulnerability in nft_dynset_init()

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.

Se encontró una vulnerabilidad de desreferencia de puntero nulo en nft_dynset_init() en net/netfilter/nft_dynset.c en nf_tables en el kernel de Linux. Este problema puede permitir que un atacante local con privilegios de usuario CAP_NET_ADMIN active una denegación de servicio.

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

CVSS Scores

NISTv3.1 5.5

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

2023-12-08 CVE Reserved
2023-12-08 CVE Published
2023-12-09 EPSS Updated
2024-09-13 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (8)

URL	Tag	Source
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAOVK2F3ALGKYIQ5IOMAYEC2DGI7BWAW
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G3AGDVE3KBLOOYBPISFDS74R4YAZEDAY

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=2253632	2024-05-22
https://github.com/torvalds/linux/commit/3701cd390fd731ee7ae8b8006246c8db82c72bea	2024-05-22

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2024:2394	2024-05-22
https://access.redhat.com/errata/RHSA-2024:2950	2024-05-22
https://access.redhat.com/errata/RHSA-2024:3138	2024-05-22
https://access.redhat.com/security/cve/CVE-2023-6622	2024-05-22

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"				<= 6.6 Search vendor "Linux" for product "Linux Kernel" and version " <= 6.6"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				6.7 Search vendor "Linux" for product "Linux Kernel" and version "6.7"		rc4		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0"		-		Affected