Linux Kernel 4.1.5 on x86-64bit NMI entry_64.S code

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in Linux Kernel 4.1.5 on x86-64bit (Operating System). It has been classified as problematic. Affected is some unknown processing of the file arch/x86/entry/entry_64.S of the component NMI Handler. The manipulation with an unknown input leads to a code vulnerability. CWE is classifying the issue as CWE-17. This is going to have an impact on availability. CVE summarizes:

arch/x86/entry/entry_64.S in the Linux kernel before 4.1.6 on the x86_64 platform does not properly determine when nested NMI processing is occurring, which allows local users to cause a denial of service (skipped NMI) by modifying the rsp register, issuing a syscall instruction, and triggering an NMI.

The weakness was released 08/31/2015 by Andy Lutomirski (Website). The advisory is shared for download at This vulnerability is traded as CVE-2015-3291 since 04/10/2015. The attack needs to be approached locally. Required for exploitation is a authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 84965 (Debian DSA-3313-1 : linux - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157135 (Oracle Enterprise Linux Security Update for kernel (ELSA-2016-0185)).

Upgrading to version 4.1.6 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (84965). Entries connected to this vulnerability are available at 76937 and 77497.







CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
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Class: Code
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 84965
Nessus Name: Debian DSA-3313-1 : linux - security update
Nessus File: 🔍
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OpenVAS ID: 703313
OpenVAS Name: Debian Security Advisory DSA 3313-1 (linux - security update)
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.1.6


04/10/2015 🔍
07/22/2015 +103 days 🔍
07/22/2015 +0 days 🔍
07/23/2015 +1 days 🔍
07/24/2015 +1 days 🔍
08/31/2015 +38 days 🔍
08/31/2015 +0 days 🔍
09/01/2015 +1 days 🔍
01/03/2016 +124 days 🔍
06/13/2022 +2353 days 🔍



Advisory: USN-2687-1
Researcher: Andy Lutomirski
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-3291 (🔍)

Vulnerability Center: 55468 - Linux Kernel <4.1.6 Local DoS in entry_64, Low
SecurityFocus: 76003 - Linux Kernel 'x86/entry/entry_64.S' Local Security Bypass Vulnerability

See also: 🔍


Created: 09/01/2015 10:11 AM
Updated: 06/13/2022 06:55 PM
Changes: 09/01/2015 10:11 AM (67), 06/20/2018 08:31 AM (13), 06/13/2022 06:55 PM (4)
Complete: 🔍


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