Integer overflow in Linux kernel - CVE-2022-49387
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104779
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-49387
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer overflow within the rzg2l_wdt_wait_delay() function in drivers/watchdog/rzg2l_wdt.c. A local user can execute arbitrary code.
Affected software
Linux kernel
How to mitigate CVE-2022-49387
Install update from vendor's website.
Linux kernel - addressed in versions 5.17.15, 5.18.4, 5.19
External References
- https://git.kernel.org/stable/c/b95a47667d34e76c2c9013f8e3b1e5039a5a0b76
- https://git.kernel.org/stable/c/e07b9fa0dc32b492de85528caaf9f0c605d8424f
- https://git.kernel.org/stable/c/ea2949df22a533cdf75e4583c00b1ce94cd5a83b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19