Use-after-free in Linux kernel - CVE-2022-49919
Published: May 2, 2025 / Updated: May 10, 2025
Vulnerability identifier: #VU108231
CSH Severity: Low
CVSS v4.0: 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-2022-49919
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 nft_commit_release() and nf_tables_commit() functions in net/netfilter/nf_tables_api.c. A local user can escalate privileges on the system.
How to mitigate CVE-2022-49919
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/26b5934ff4194e13196bedcba373cd4915071d0e
- https://git.kernel.org/stable/c/4ab6f96444e936f5e4a936d5c0bc948144bcded3
- https://git.kernel.org/stable/c/6044791b7be707fd0e709f26e961a446424e5051
- https://git.kernel.org/stable/c/74fd5839467054cd9c4d050614d3ee8788386171
- https://git.kernel.org/stable/c/b2d7a92aff0fbd93c29d2aa6451fb99f050e2c4e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.154