SB20260325125 - Debug Messages Revealing Unnecessary Information in Linux kernel netfilter

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Main Vulnerability Database SB20260325125

SB20260325125 - Debug Messages Revealing Unnecessary Information in Linux kernel netfilter

Published: March 25, 2026

Security Bulletin ID SB20260325125
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Debug Messages Revealing Unnecessary Information (CVE-ID: CVE-2026-23333)

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper input validation in the netfilter nft_set_rbtree component when handling interval overlap in set elements. A local user can send a specially crafted request to cause a denial of service.

Exploitation requires the ability to insert or delete interval elements in nftables sets. The issue specifically affects open intervals at the end of a set, where missing end-element validation can lead to inconsistent state and rejection of valid operations.


Remediation

Install update from vendor's website.

References