SB20240603113 - NULL pointer dereference in Linux kernel
Published: June 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240603113
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) NULL pointer dereference (CVE-ID: CVE-2021-47464)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the audit_filter_rules() function in kernel/auditsc.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/d6f451f1f60c58d73038c7c3177066f8f084e2a2
- https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05
- https://git.kernel.org/stable/c/4e9e46a700201b4c85081fd478c99c692a9aaa0d
- https://git.kernel.org/stable/c/6e3ee990c90494561921c756481d0e2125d8b895
- 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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.156