#VU93253 Resource management error in Linux kernel - CVE-2021-47252
Published: June 25, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93253
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-2021-47252
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 batadv_iv_ogm_emit() function in net/batman-adv/bat_iv_ogm.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/45011f2973f6b52cf50db397bb27bf805f5f0e7f
- https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09
- https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e
- https://git.kernel.org/stable/c/e8e9d2968a9d08bf5c683afca182f1537edebf8d
- https://git.kernel.org/stable/c/e7fbd8184fa9e85f0d648c499841cb7ff6dec9f4
- https://git.kernel.org/stable/c/282baa8104af44e04c4af3e7f933b44267c7f86f
- https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8
- https://git.kernel.org/stable/c/9f460ae31c4435fd022c443a6029352217a16ac1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.238
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.196
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.293
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.128