VMware Workstation/Fusion RPC null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in VMware Workstation and Fusion. This issue affects some unknown processing of the component RPC Handler. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2017-4938. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in VMware Workstation and Fusion (Virtualization Software) (unknown version). Affected is an unknown code block of the component RPC Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

VMware Workstation (12.x before 12.5.8) and Fusion (8.x before 8.5.9) contain a guest RPC NULL pointer dereference vulnerability. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.

The bug was discovered 11/16/2017. The weakness was shared 11/17/2017 (Website). The advisory is available at vmware.com. This vulnerability is traded as CVE-2017-4938 since 12/26/2016. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 104853 (VMware Workstation 12.x < 12.5.8 Multiple Vulnerabilities (VMSA-2017-0018)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370662 (VMware Workstation and Fusion Multiple Vulnerabilities (VMSA-2017-0018,VMSA-2017-0021,VMSA-2018-0002)).

Upgrading 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 databases at Tenable (104853) and SecurityFocus (BID 101887†). The entries VDB-109670, VDB-109671, VDB-109672 and VDB-109673 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104853
Nessus Name: VMware Workstation 12.x < 12.5.8 Multiple Vulnerabilities (VMSA-2017-0018)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/26/2016 🔍
11/16/2017 +325 days 🔍
11/16/2017 +0 days 🔍
11/16/2017 +0 days 🔍
11/17/2017 +1 days 🔍
11/17/2017 +0 days 🔍
11/18/2017 +1 days 🔍
11/29/2017 +11 days 🔍
01/24/2021 +1152 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: vmware.com
Researcher: Skyer
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-4938 (🔍)
GCVE (CVE): GCVE-0-2017-4938
GCVE (VulDB): GCVE-100-109674
SecurityFocus: 101887 - Multiple VMware Products CVE-2017-4938 Denial of Service Vulnerability
SecurityTracker: 1039835

scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔍

Entryinfo

Created: 11/18/2017 09:01
Updated: 01/24/2021 12:36
Changes: 11/18/2017 09:01 (68), 12/08/2019 15:12 (5), 01/24/2021 12:29 (3), 01/24/2021 12:36 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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