SB2025031701 - Input validation error in Linux kernel net netfilter
Published: March 17, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025031701
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 security vulnerability.
1) Input validation error (CVE-ID: CVE-2023-52927)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the nft_ct_set_zone_eval() and nft_ct_tmpl_alloc_pcpu() functions in net/netfilter/nft_ct.c, within the EXPORT_SYMBOL_GPL() and nf_ct_find_expectation() functions in net/netfilter/nf_conntrack_expect.c, within the init_conntrack() function in net/netfilter/nf_conntrack_core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.