#VU99081 Use of uninitialized resource in Linux kernel - CVE-2022-48993
Published: October 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU99081
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-48993
CWE-ID: CWE-908
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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