#VU94401 Memory leak in Linux kernel - CVE-2021-47624
Published: July 17, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94401
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-2021-47624
CWE-ID: CWE-401
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 memory leak within the rpc_sysfs_xprt_state_change() function in net/sunrpc/sysfs.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/4b22aa42bd4d2d630ef1854c139275c3532937cb
- https://git.kernel.org/stable/c/5f6024c05a2c0fdd180b29395aaf686d25af3a0f
- https://git.kernel.org/stable/c/776d794f28c95051bc70405a7b1fa40115658a18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17