#VU89262 Out-of-bounds read in Linux kernel - CVE-2021-46952
Published: May 8, 2024
Vulnerability identifier: #VU89262
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-46952
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a boundary condition within the nfs23_parse_monolithic() function in fs/nfs/fs_context.c when handling UDP retrans. A remote attacker can trigger an out-of-bounds read error and gain access to sensitive information or perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.