#VU93138 Buffer overflow in Linux kernel - CVE-2021-47544
Published: June 24, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93138
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-2021-47544
CWE-ID: CWE-119
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 corruption within the include/net/sock.h. 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/c6f340a331fb72e5ac23a083de9c780e132ca3ae
- https://git.kernel.org/stable/c/5a9afcd827cafe14a95c9fcbded2c2d104f18dfc
- https://git.kernel.org/stable/c/dacb5d8875cc6cd3a553363b4d6f06760fcbe70c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16