#VU9753 Memory corruption in Linux kernel - CVE-2017-16995

Vulnerability identifier: #VU9753

Vulnerability risk: Low

CVSSv4.0: 8.5 [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:A/U:Clear]

CVE-ID: CVE-2017-16995

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: Yes

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

Vendor: Linux Foundation

Description
The vulnerability allows a local attacker to cause DoS condition or execute arbitrary code on the target system.

The weakness exists in the check_alu_op function due to boundary error. A local attacker can trigger memory corruption, cause the service to crash or execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 4.14.9.

Vulnerable software versions

Linux kernel: 4.14.8

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External links
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.9

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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. However, a fully functional exploit for this vulnerability is available.