#VU104518 Out-of-bounds read in Linux kernel - CVE-2022-49557
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104518
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-2022-49557
CWE-ID: CWE-125
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 an out-of-bounds read error within the fpu_alloc_guest_fpstate() function in arch/x86/kernel/fpu/core.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/9cf15ebb7dedfe2f27120743b8ea8441c99ac73c
- https://git.kernel.org/stable/c/c181acbd1a427859d5fda543b95fbae28f7f6068
- https://git.kernel.org/stable/c/d187ba5312307d51818beafaad87d28a7d939adf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19