VDB-143348 · CVE-2019-5527 · GCVE-0-2019-5527

VMware ESXi/Workstation/Fusion/VMRC/Horizon Client Virtual Sound Device use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5	$5k-$25k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in VMware ESXi, Workstation, Fusion, VMRC and Horizon Client. The impacted element is an unknown function of the component Virtual Sound Device. Such manipulation leads to use after free. This vulnerability is listed as CVE-2019-5527. The attack must be carried out locally. There is no available exploit.

Detailsinfo

A vulnerability was found in VMware ESXi, Workstation, Fusion, VMRC and Horizon Client (Virtualization Software) and classified as critical. Affected by this issue is some unknown functionality of the component Virtual Sound Device. 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. CVE summarizes:

ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.5.

The weakness was presented 10/10/2019 (Website). The advisory is shared for download at vmware.com. This vulnerability is handled as CVE-2019-5527 since 01/07/2019. 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 current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 10/01/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-143349 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Virtualization Software

Vendor

VMware

Name

License

commercial

Website

Vendor: https://www.vmware.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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: 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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2019 🔍
10/10/2019 +276 days 🔍
10/11/2019 +1 days 🔍
10/01/2020 +356 days 🔍

Sourcesinfo

Vendor: vmware.com

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

CVE: CVE-2019-5527 (🔍)
GCVE (CVE): GCVE-0-2019-5527
GCVE (VulDB): GCVE-100-143348
scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔍

Entryinfo

Created: 10/11/2019 09:40
Updated: 10/01/2020 11:35
Changes: 10/11/2019 09:40 (55), 10/01/2020 11:35 (1)
Complete: 🔍
Cache ID: 216::103