SB20240702115 - Input validation error in Linux kernel nfs
Published: July 2, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240702115
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-2021-47322)
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_direct_write_completion() function in fs/nfs/direct.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/5c7ef8a3705542136a1e19b070e951f0730b2153
- https://git.kernel.org/stable/c/7c96a2ee45be41d5a167e6332d202086752c36bb
- https://git.kernel.org/stable/c/7aec9f862411906f8c27071ba65a1e110ad7d2fd
- https://git.kernel.org/stable/c/3731d44bba8e0116b052b1b374476c5f6dd9a456
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.52
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14