Buffer overflow in Linux kernel - CVE-2020-10742
Published: June 2, 2022
Vulnerability identifier: #VU63957
CSH Severity: Low
CVSS v4.0: 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-2020-10742
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an index buffer overflow during Direct IO write in NFS client. A local user can force the client to reach out of the index after one memory allocation by kmalloc and cause a kernel panic.
How to mitigate CVE-2020-10742
Install updates from vendor's website.