Microsoft Windows 10 1703 Subsystem for Linux memory corruption

CVSS Meta Temp Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Microsoft Windows 10 1703. Affected is an unknown function of the component Subsystem for Linux. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2017-8627. It is possible to launch the attack on the local host. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Microsoft Windows 10 1703 (Operating System) and classified as problematic. This vulnerability affects some unknown functionality of the component Subsystem for Linux. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability. CVE summarizes:

Windows Subsystem for Linux in Windows 10 1703, allows a denial of service vulnerability due to the way it handles objects in memory, aka "Windows Subsystem for Linux Denial of Service Vulnerability".

The bug was discovered 08/08/2017. The weakness was released 08/08/2017 with Microsoft as KB4034674 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability was named CVE-2017-8627 since 05/03/2017. The exploitation appears to be difficult. The attack needs to be approached locally. A single authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 102269 (KB4034674: Windows 10 Version 1703 August 2017 Cumulative Update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91405 (Microsoft Windows Security Update August 2017).

Applying the patch KB4034674 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102269) and SecurityFocus (BID 100065†). Entries connected to this vulnerability are available at VDB-102409, VDB-104989, VDB-104990 and VDB-104991. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 4.4
Vendor Vector (Microsoft): 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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Nessus ID: 102269
Nessus Name: KB4034674: Windows 10 Version 1703 August 2017 Cumulative Update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilites (KB4034674)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: KB4034674

Timelineinfo

05/03/2017 🔍
08/08/2017 +97 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/08/2017 +0 days 🔍
08/09/2017 +1 days 🔍
01/07/2021 +1247 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4034674
Researcher: Microsoft.
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8627 (🔍)
GCVE (CVE): GCVE-0-2017-8627
GCVE (VulDB): GCVE-100-105016

OVAL: 🔍

SecurityFocus: 100065 - Microsoft Windows CVE-2017-8627 Local Denial of Service Vulnerability
SecurityTracker: 1039103

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 08/09/2017 11:50
Updated: 01/07/2021 17:43
Changes: 08/09/2017 11:50 (82), 11/05/2019 06:23 (12), 01/07/2021 17:40 (3), 01/07/2021 17:43 (1)
Complete: 🔍
Cache ID: 216::103

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