#VU111450 Use-after-free in Linux kernel - CVE-2022-50000
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111450
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50000
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nf_flow_offload_stats() function in net/netfilter/nf_flow_table_offload.c, within the nf_flow_table_free() function in net/netfilter/nf_flow_table_core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/89e135a36a9eb81412b5459df94a80995ce62eef
- https://git.kernel.org/stable/c/8fbdec08dbf7d7ab8e35bdc65eb4394bc82d1e26
- https://git.kernel.org/stable/c/9afb4b27349a499483ae0134282cefd0c90f480f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0