SB20241022193 - Use of uninitialized resource in Linux kernel fbdev core driver
Published: October 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB20241022193
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) Use of uninitialized resource (CVE-ID: CVE-2022-48993)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the fbcon_prepare_logo() function in drivers/video/fbdev/core/fbcon.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/20e78b7d1c1019789d9754ad9246192916f1a3b4
- https://git.kernel.org/stable/c/9d5126b574c9177ed9ca925e36f85a1e6ce80bd2
- https://git.kernel.org/stable/c/d9b53caf0191cee24afd05ca6c83ed873199b52d
- https://git.kernel.org/stable/c/e70a5724400a841c9857ee3d08dae4d6c53ee40d
- https://git.kernel.org/stable/c/9bbebc6aba72ece39a200c8141f44e68ba883877
- https://git.kernel.org/stable/c/a6a00d7e8ffd78d1cdb7a43f1278f081038c638f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.269
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.227
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6