VMware Workstation/Fusion NAT Service use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in VMware Workstation and Fusion. This affects an unknown part of the component NAT Service. The manipulation leads to use after free. This vulnerability is listed as CVE-2017-4949. The attack must be carried out locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in VMware Workstation and Fusion (Virtualization Software) (the affected version is unknown). This issue affects an unknown code of the component NAT Service. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

VMware Workstation and Fusion contain a use-after-free vulnerability in VMware NAT service when IPv6 mode is enabled. This issue may allow a guest to execute code on the host. Note: IPv6 mode for VMNAT is not enabled by default.

The bug was discovered 01/10/2018. The weakness was presented 01/11/2018 (Website). The advisory is shared at vmware.com. The identification of this vulnerability is CVE-2017-4949 since 12/26/2016. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 105783 (VMware Player 12.x < 12.5.9 / 14.x < 14.1.1 Multiple Vulnerabilities (VMSA-2018-0004) (VMSA-2018-0005) (Spectre)), 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 370721 (VMware Workstation Pro and Player Multiple Vulnerabilities.(VMSA-2018-0005)).

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 (105783) and SecurityFocus (BID 102489†). See VDB-111774 for similar entry. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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: 105783
Nessus Name: VMware Player 12.x < 12.5.9 / 14.x < 14.1.1 Multiple Vulnerabilities (VMSA-2018-0004) (VMSA-2018-0005) (Spectre)
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 🔍
01/09/2018 +379 days 🔍
01/10/2018 +0 days 🔍
01/10/2018 +0 days 🔍
01/11/2018 +1 days 🔍
01/11/2018 +0 days 🔍
01/12/2018 +1 days 🔍
01/12/2018 +0 days 🔍
01/29/2021 +1113 days 🔍

Sourcesinfo

Vendor: vmware.com

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

CVE: CVE-2017-4949 (🔍)
GCVE (CVE): GCVE-0-2017-4949
GCVE (VulDB): GCVE-100-111773
SecurityFocus: 102489
SecurityTracker: 1040161

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

Entryinfo

Created: 01/12/2018 08:05
Updated: 01/29/2021 21:48
Changes: 01/12/2018 08:05 (66), 12/22/2019 15:20 (4), 01/29/2021 21:41 (2), 01/29/2021 21:48 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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