#VU11878 Improper input validation in Linux kernel - CVE-2018-10087

Vulnerability identifier: #VU11878

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2018-10087

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the kernel_wait4 function in kernel/exit.c due to improper validation of the INT_MIN parameter. A local attacker can trigger an error condition and cause the service to crash.

Mitigation
Update to version 4.13 or later.

Vulnerable software versions

Linux kernel: 4.12 - 4.12.14

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External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dd83c161fbcc5d8be637ab...

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.