#VU67512 Code injection in Linux kernel - CVE-2016-3695

Vulnerability identifier: #VU67512

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-2016-3695

CWE-ID: CWE-74

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists within the einj_error_inject() function in drivers/acpi/apei/einj.c in the Linux kernel, which allows local users to simulate hardware errors. A local user can cause a denial of service by leveraging failure to disable APEI error injection through EINJ when securelevel is set.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://www.securityfocus.com/bid/102327
https://bugzilla.redhat.com/show_bug.cgi?id=1322755
https://github.com/mjg59/linux/commit/d7a6be58edc01b1c66ecd8fcc91236bfbce0a420

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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.