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3.2	$0-$5k	0.00

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 github.com. 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.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.1.5

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 84965
Nessus Name: Debian DSA-3313-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703313
OpenVAS Name: Debian Security Advisory DSA 3313-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.1.6
Patch: git.kernel.org

Timelineinfo

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 🔍

Sourcesinfo

Vendor: kernel.org

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

CVE: CVE-2015-3291 (🔍)
OVAL: 🔍

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: 🔍

Entryinfo

Created: 09/01/2015 10:11
Updated: 06/13/2022 18:55
Changes: 09/01/2015 10:11 (67), 06/20/2018 08:31 (13), 06/13/2022 18:55 (4)
Complete: 🔍

Discussion

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