SB20240702132 - Input validation error in Linux kernel nfs
Published: July 2, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240702132
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-47167)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the nfs_pageio_do_add_request() function in fs/nfs/pagelist.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e
- https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101
- https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490
- https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.42
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.124