#VU93845 Resource management error in Linux kernel - CVE-2021-47129
Published: July 7, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93845
Vulnerability risk: Low
CVSSv4.0: 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
CVE-ID: CVE-2021-47129
CWE-ID: CWE-399
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 perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the nft_ct_expect_obj_eval() function in net/netfilter/nft_ct.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/da8d31e80ff425f5a65dab7060d5c4aba749e562
- https://git.kernel.org/stable/c/5f3429c05e4028a0e241afdad856dd15dec2ffb9
- https://git.kernel.org/stable/c/2c0e6b35b88a961127066a1028bce9c727cbc3e5
- https://git.kernel.org/stable/c/1710eb913bdcda3917f44d383c32de6bdabfc836
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.43
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.125