SB20250916418 - Memory leak in Linux kernel netfilter
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916418
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) Memory leak (CVE-ID: CVE-2023-53304)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the nft_rbtree_get() and __nft_rbtree_insert() functions in net/netfilter/nft_set_rbtree.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0
- https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287
- https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76
- https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8
- https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c
- https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462
- https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.316
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.190
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.124
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.262
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5