#VU12917 Improper input validation in Linux kernel - CVE-2018-11232

Vulnerability identifier: #VU12917

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-11232

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 unauthenticated attacker to cause DoS condition on the target system. 

The weakness exists in the etm_setup_aux function due to improper validation of parameters. A local attacker can send specially crafted requests and cause the service to crash.

Mitigation
Update to version 4.10.2.

Vulnerable software versions

Linux kernel: 4.10.0 - 4.10.1

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External links
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f09444639099584bc4784d...

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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.