VDB-189688 · CVE-2021-22045 · VMSA-2022-0001

VMware ESXi/Fusion/Workstation CD-ROM Device Emulation heap-based overflow

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in VMware ESXi, Fusion and Workstation. This issue affects some unknown processing of the component CD-ROM Device Emulation. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2021-22045. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in VMware ESXi, Fusion and Workstation (Virtualization Software) (affected version not known) and classified as critical. This vulnerability affects some unknown functionality of the component CD-ROM Device Emulation. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 01/05/2022 as VMSA-2022-0001. The advisory is shared for download at vmware.com. This vulnerability was named CVE-2021-22045 since 01/04/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/05/2022).

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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: 7.1
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / 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 🔍
01/05/2022 +366 days 🔍
01/05/2022 +0 days 🔍
01/06/2022 +1 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2022-0001
Status: Confirmed

CVE: CVE-2021-22045 (🔍)
GCVE (CVE): GCVE-0-2021-22045
GCVE (VulDB): GCVE-100-189688
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 01/05/2022 03:39
Updated: 01/06/2022 14:40
Changes: 01/05/2022 03:39 (39), 01/06/2022 14:40 (1)
Complete: 🔍
Cache ID: 216::103