SB20250402126 - Resource management error in Linux kernel openvswitch



SB20250402126 - Resource management error in Linux kernel openvswitch

Published: April 2, 2025 Updated: May 11, 2025

Security Bulletin ID SB20250402126
CSH 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 vulnerability.


1) Resource management error (CVE-ID: CVE-2025-21958)

CWE-ID: CWE-399 - Resource Management Errors

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the ovs_ct_verify(), ovs_ct_copy_action(), __ovs_ct_free_action() and ovs_ct_init() functions in net/openvswitch/conntrack.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.