Use-after-free in Linux kernel - CVE-2019-19526
Published: January 21, 2020
Vulnerability identifier: #VU24439
CSH Severity: Low
CVSS v4: 7 [CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-19526
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to use-after-free error in the drivers/nfc/pn533/usb.c driver. A local user with physical access can use a malicious USB device to trigger use-after-free error and execute arbitrary code on the system with elevated privileges.
Affected software
Linux kernel
How to mitigate CVE-2019-19526
Install update from vendor's website.
Linux kernel - update to 5.3.9