CVE-2023-6622

Kernel: null pointer dereference vulnerability in nft_dynset_init()

MEDIUM
5.5
CVSS Score
Published: December 8, 2023 at 05:33 PM UTC
Updated: June 17, 2026 at 06:51 AM UTC
3 products affected across 3 vendorsLinux KernelFedoraEnterprise Linux

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 0:4.18.0-553.el8_10 (unaffected)
Vendor states this is fixed in 0:4.18.0-553.rt7.342.el8_10 (unaffected)
Vendor states this is fixed in 0:5.14.0-427.13.1.el9_4 (unaffected)
Vendor states this is fixed in 6 (unaffected)
Vendor states this is fixed in 7 (unaffected)

References (8)

CVSS

5.5MEDIUMredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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