#VU104425 Use-after-free in Linux kernel - CVE-2022-49501
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104425
Vulnerability risk: Low
CVSSv4.0: 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/E:U/U:Clear
CVE-ID: CVE-2022-49501
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the smsc95xx_start_phy() function in drivers/net/usb/smsc95xx.c, within the ax88772_stop() function in drivers/net/usb/asix_devices.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/6d5deb242874d924beccf7eb3cef04c1c3b0da79
- https://git.kernel.org/stable/c/969a1b3ea3cb7d58a16fe12fd1b04bfc0ea40509
- https://git.kernel.org/stable/c/d1408f6b4dd78fb1b9e26bcf64477984e5f85409
- https://git.kernel.org/stable/c/fbda837107f9bd4ec658d2aa88c6856dba606f06
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14