#VU9771 Out-of-bounds write in Linux kernel - CVE-2017-17558
Published: December 26, 2017
Vulnerability identifier: #VU9771
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-2017-17558
CWE-ID: CWE-787
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 attacker to cause DoS condition on the target system.
The weakness exists due to the usb_destroy_configuration function in drivers/usb/core/config.c in the USB core subsystem in the Linux kernel does not consider the maximum number of configurations and interfaces before attempting to release resources. A local attacker can supply specially crafted USB device, trigger out-of-bounds write access and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to the usb_destroy_configuration function in drivers/usb/core/config.c in the USB core subsystem in the Linux kernel does not consider the maximum number of configurations and interfaces before attempting to release resources. A local attacker can supply specially crafted USB device, trigger out-of-bounds write access and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Remediation
Update to version 4.14.5.