Out-of-bounds write in Linux kernel - CVE-2017-18551
Published: September 4, 2019
Vulnerability identifier: #VU20858
CSH Severity: Low
CVSS v4.0: 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-2017-18551
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a boundary error in the "drivers/i2c/i2c-core-smbus.c" file when processing untrusted input. A local authenticated user access the system and execute an application that submits malicious input to the affected software, trigger an out-of-bounds write condition in the "i2c_smbus_xfer_emulated" function and execute arbitrary code or cause a DoS condition on the target system.
How to mitigate CVE-2017-18551
Install updates from vendor's website.