#VU93183 Resource management error in Linux kernel - CVE-2021-47457
Published: June 24, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93183
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-2021-47457
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 isotp_sendmsg() function in net/can/isotp.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/053bc12df0d6097c1126d0e14fa778a0a8faeb64
- https://git.kernel.org/stable/c/a76abedd2be3926d6deba236a935c7f98abf9110
- https://git.kernel.org/stable/c/9acf636215a6ce9362fe618e7da4913b8bfe84c8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.76
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15