#VU11519 Integer overflow in Linux kernel - CVE-2017-18255
Published: April 4, 2018 / Updated: October 11, 2021
Vulnerability identifier: #VU11519
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-2017-18255
CWE-ID: CWE-190
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 improper validation of the input value from userspace when using the perf_cpu_time_max_percent_handler function, as defined in the kernel/events/core.c source code file. A local attacker can send specially crafted input that contains large values, trigger integer overflow and cause the service to crash.
The weakness exists due to improper validation of the input value from userspace when using the perf_cpu_time_max_percent_handler function, as defined in the kernel/events/core.c source code file. A local attacker can send specially crafted input that contains large values, trigger integer overflow and cause the service to crash.
Remediation
Update to version 4.11 or later.