#VU1171 NULL pointer dereference

Published: 2016-11-10 | Updated: 2018-05-01

Vulnerability identifier: #VU1171

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-8630


Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

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

The weakness exists in the x86_decode_insn function in arch/x86/kvm/emulate.c due to NULL pointer dereference when KVM is enabled. A local attacker can cause the service to crash via a certain use of a ModR/M byte in an undefined instruction.

Update to version 4.8.7.

Vulnerable software versions

Linux kernel: 4.8 - 4.8.6


External links

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.

Latest bulletins with this vulnerability