VMware Workstation/Fusion RPC null pointer dereference

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in VMware Workstation and Fusion. Impacted is an unknown function of the component RPC Handler. Such manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2018-6963. Local access is required to approach this attack. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware Workstation and Fusion (Virtualization Software) (affected version unknown) and classified as problematic. Affected by this issue is an unknown functionality of the component RPC Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

VMware Workstation (14.x before 14.1.2) and Fusion (10.x before 10.1.2) contain multiple denial-of-service vulnerabilities that occur due to NULL pointer dereference issues in the RPC handler. Successful exploitation of these issues may allow an attacker with limited privileges on the guest machine trigger a denial-of-Service of their guest machine.

The bug was discovered 05/21/2018. The weakness was disclosed 05/22/2018 with Zero Day Initiative (Website). The advisory is shared for download at vmware.com. This vulnerability is handled as CVE-2018-6963 since 02/14/2018. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 110099 (VMware Workstation 14.x < 14.1.2 Multiple DoS (VMSA-2018-0013)), 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 370967 (VMware Workstation 14.x, Fusion 10.x Multiple Vulnerabilities (VMSA-2018-0013,VMSA-2018-0016)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110099) and SecurityFocus (BID 104237†). The entries VDB-118111, VDB-122169 and VDB-122172 are pretty similar. 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: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

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

NVD Base Score: 5.5
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: 110099
Nessus Name: VMware Workstation 14.x < 14.1.2 Multiple DoS (VMSA-2018-0013)
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

02/14/2018 🔍
05/21/2018 +96 days 🔍
05/21/2018 +0 days 🔍
05/21/2018 +0 days 🔍
05/22/2018 +0 days 🔍
05/22/2018 +0 days 🔍
05/23/2018 +1 days 🔍
05/24/2018 +1 days 🔍
03/14/2023 +1755 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: vmware.com
Organization: Zero Day Initiative
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-6963 (🔍)
GCVE (CVE): GCVE-0-2018-6963
GCVE (VulDB): GCVE-100-118112
SecurityFocus: 104237 - VMware Workstation and Fusion CVE-2018-6963 Multiple Denial of Service Vulnerabilities
SecurityTracker: 1040957

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

Entryinfo

Created: 05/23/2018 10:41
Updated: 03/14/2023 19:58
Changes: 05/23/2018 10:41 (68), 02/08/2020 08:58 (6), 03/14/2023 19:58 (4)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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