SB2024070415 - Improper resource shutdown or release in Linux kernel netfilter
Published: July 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070415
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper resource shutdown or release (CVE-ID: CVE-2021-47452)
CWE-ID: CWE-404 - Improper Resource Shutdown or Release
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 failure to properly release resources within the nft_netdev_event() and nf_tables_netdev_event() functions in net/netfilter/nft_chain_filter.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.