VMware ESXi/Fusion/Workstation Virtual USB 1.1 UHCI memory corruption

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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in VMware ESXi, Fusion and Workstation. Affected by this vulnerability is an unknown functionality of the component Virtual USB 1.1 UHCI. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2019-5518. The attack may be carried out on the physical device. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in VMware ESXi, Fusion and Workstation (Virtualization Software) (affected version unknown). It has been classified as critical. This affects an unknown functionality of the component Virtual USB 1.1 UHCI. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

VMware ESXi (6.7 before ESXi670-201903001, 6.5 before ESXi650-201903001, 6.0 before ESXi600-201903001), Workstation (15.x before 15.0.4, 14.x before 14.1.7), Fusion (11.x before 11.0.3, 10.x before 10.1.6) contain an out-of-bounds read/write vulnerability in the virtual USB 1.1 UHCI (Universal Host Controller Interface). Exploitation of this issue requires an attacker to have access to a virtual machine with a virtual USB controller present. This issue may allow a guest to execute code on the host.

The bug was discovered 03/28/2019. The weakness was presented 04/01/2019 by Richard Zhu with Fluoroacetate (Website). The advisory is shared at vmware.com. This vulnerability is uniquely identified as CVE-2019-5518 since 01/07/2019. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371717 (VMware Workstation (14.x,15.x), Fusion (10.x,11.x) Out-of-Bounds Read/Write and TOCTOU Vulnerabilities (VMSA-2019-0005)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 107541†). See VDB-132692, VDB-132694, VDB-132716 and VDB-132717 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2019 🔍
03/21/2019 +73 days 🔍
03/28/2019 +7 days 🔍
04/01/2019 +4 days 🔍
04/02/2019 +1 days 🔍
08/21/2023 +1602 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: 152290
Researcher: Richard Zhu
Organization: Fluoroacetate
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-5518 (🔍)
GCVE (CVE): GCVE-0-2019-5518
GCVE (VulDB): GCVE-100-132693
SecurityFocus: 107541 - Multiple VMware Products CVE-2019-5518 Out of Bounds Read Write Local Code Execution Vulnerability

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

Entryinfo

Created: 04/02/2019 08:13
Updated: 08/21/2023 11:05
Changes: 04/02/2019 08:13 (61), 05/23/2020 16:19 (6), 08/21/2023 11:05 (4)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!