Vulnerability identifier: #VU2590
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists in arch/x86/entry/entry_64.S on the x86_64 platform due to mishandling of IRET faults in processing NMIs that occurred during userspace execution. A local attacker can trigger NMI and bypass security restrictions.
Mitigation
Update to version 4.1.6.
Vulnerable software versions
Linux kernel: 4.1.1 - 4.1.4
External links
http://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.