VDB-175536 · CVE-2021-21987 · VMSA-2021-0009

VMware Workstation/Horizon Client TTC Parser out-of-bounds

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.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability was found in VMware Workstation and Horizon Client and classified as problematic. This impacts an unknown function of the component TTC Parser. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2021-21987. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in VMware Workstation and Horizon Client (Virtualization Software) (the affected version is unknown). Affected is an unknown code of the component TTC Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality.

The weakness was released 05/24/2021 as VMSA-2021-0009. The advisory is shared for download at vmware.com. This vulnerability is traded as CVE-2021-21987. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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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: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2021 🔍
05/24/2021 +139 days 🔍
05/24/2021 +0 days 🔍
05/27/2021 +3 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2021-0009
Status: Confirmed

CVE: CVE-2021-21987 (🔍)
GCVE (CVE): GCVE-0-2021-21987
GCVE (VulDB): GCVE-100-175536
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 05/24/2021 16:28
Updated: 05/27/2021 09:03
Changes: 05/24/2021 16:28 (38), 05/27/2021 09:03 (5)
Complete: 🔍
Cache ID: 216::103