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.

Advisory ID

VMSA-2019-0014.1

Advisory Severity

Important

CVSSv3 Range

4.7-8.5  

Synopsis

VMware ESXi, Workstation, Fusion, VMRC and Horizon Client updates address use-after-free and denial of service vulnerabilities. (CVE-2019-5527, CVE-2019-5535)  

Issue Date

2019-09-19  

Updated On

2019-09-21  

CVE(s)

CVE-2019-5527, CVE-2019-5535  

**1\. Impacted Products**

*   VMware vSphere ESXi (ESXi)
*   VMware Workstation Pro / Player (Workstation)
*   VMware Fusion Pro / Fusion (Fusion)
*   VMware Remote Console  for Windows (VMRC for Windows)
*   VMware Remote Console  for Linux (VMRC for Linux)
*   VMware Horizon Client for Windows
*   VMware Horizon Client for Linux
*   VMware Horizon Client for Mac  
    

**2\. Introduction****VMware ESXi, Workstation, Fusion, VMRC and Horizon Client updates address use-after-free and denial-of-service vulnerabilities.**

*   CVE-2019-5527: ESXi, Workstation, Fusion, VMRC and Horizon Client use-after-free vulnerability
*   CVE-2019-5535: VMware Workstation and Fusion network denial-of-service vulnerability

**3a. ESXi, Workstation, Fusion, VMRC and Horizon Client use-after-free vulnerability - CVE-2019-5527  
**

**Description:  
**

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.  

**Known Attack Vectors:**

A local attacker with non-administrative access on the guest machine may exploit this issue to execute code on the host.  

**Resolution:**

To remediate CVE-2019-5527, update/upgrade to the versions listed in the 'Fixed Version' column of the 'Resolution Matrix' found below.  

**Workarounds:**

None.

**Additional Documentations:**

None.

**Notes:**

None.  

**Acknowledgements:**

VMware would like to thank Will Dormann of the CERT/CC and wenqunwang from Codesafe Team of Legendsec at Qi'anxin Group for independently reporting this issue to us.  

**Response Matrix:**

**Security**

Sign up for Security Advisories

Product

Version

Running On

CVE Identifier

CVSSV3

Severity

Fixed Version

Workarounds

Additional Documents

ESXi  

6.7

Any  

CVE-2019-5527  

8.5  

Important  

ESXi670-201904101-SG  

None

None

ESXi

6.5

Any

CVE-2019-5527

8.5  

Important

ESXi650-201903401-SG

None

None

ESXi

6.0

Any

CVE-2019-5527

8.5

Important

ESXi600-201909101-SG

None

None

Workstation

15.x

Any

CVE-2019-5527

8.5

Important

15.5.0

None

None

Fusion

11.x

OS X

CVE-2019-5527

8.5

Important

11.5.0

None

None

VMRC for Windows

10.x

Windows

CVE-2019-5527

8.5

Important

10.0.5 and Later

None

None

VMRC for Linux

10.x

Linux  

CVE-2019-5527

8.5

Important

10.0.5 and Later

None

None

Horizon Client for Windows

5.x and prior

Windows

CVE-2019-5527

8.0

Important

5.2.0

None

None

Horizon Client for Linux

5.x and prior

Linux

CVE-2019-5527

8.0

Important

5.2.0

None

None

Horizon Client for Mac

5.x and prior

OS X

CVE-2019-5527

8.0

Important

5.2.0

None

None

**3b. VMware Workstation and Fusion network denial-of-service vulnerability - CVE-2019-5535  
**

**Description:  
**

VMware Workstation and Fusion contain a network denial-of-service vulnerability due to improper handling of certain IPv6 packets. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 4.7.  

**Known Attack Vectors:**

An attacker may exploit this issue by sending a specially crafted IPv6 packet from a guest machine on the VMware NAT to disallow network access for all guest machines using VMware NAT mode. This issue can be exploited only if IPv6 mode for VMNAT is enabled.  

**Resolution:**

To remediate CVE-2019-5535, update/upgrade to the versions listed in the 'Fixed Version' column of the 'Resolution Matrix' found below.  

**Workarounds:**

None.  

**Additional Documentations:**

None.

**Notes:**

IPv6 mode for VMNAT is not enabled by default.

**Acknowledgements:**

VMware would like to thank Carlos Garcia Prado from FireEye for reporting this issue to us.  

**Response Matrix:**

Product

Version

Running On

CVE Identifier

CVSSV3

Severity

Fixed Version

Workarounds

Additional Documents

Workstation  

15.x  

Any  

CVE-2019-5535  

4.7  

Moderate  

15.5.0  

None

None

Fusion

11.x

OS X

CVE-2019-5535  

4.7  

Moderate  

11.5.0

None  

None  

**5. Change log** 

**2019-09-19:** **VMSA-2019-0014** Initial security advisory in conjunction with the release of Workstation 15.5.0 and Fusion 11.5.0 on 2019-09-19.

**2019-09-21: VMSA-2019-0014.1** Updated security advisory to clarify **Known Attack Vectors** of Issue **3(a).**

CVE-2019-5527: VMSA-2019-0014.1

SciLexer.dll in Scintilla in Notepad++ (x64) before 7.7 allows remote code execution or denial of service via Unicode characters in a crafted .ml file.

CVE-2019-16294: Scintilla

An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/media/usb/siano/smsusb.c driver.

CVE-2019-15218

An issue was discovered in the Linux kernel before 5.1.17. There is a NULL pointer dereference caused by a malicious USB device in the sound/usb/line6/pcm.c driver.

CVE-2019-15221

A session fixation vulnerability in Jenkins Gitlab Authentication Plugin 1.4 and earlier in GitLabSecurityRealm.java allows unauthorized attackers to impersonate another user if they can control the pre-authentication session.

This advisory announces vulnerabilities in the following Jenkins deliverables:

*   Avatar Plugin
*   Build Pipeline Plugin
*   Codefresh Integration Plugin
*   Configuration as Code Plugin
*   eggplant-plugin Plugin
*   File System SCM Plugin
*   Google Cloud Messaging Notification Plugin
*   GitLab Authentication Plugin
*   JClouds Plugin
*   Mask Passwords Plugin
*   PegDown Formatter Plugin
*   Relution Enterprise Appstore Publisher Plugin
*   Simple Travis Pipeline Runner Plugin
*   TestLink Plugin
*   VMware Lab Manager Slaves Plugin
*   Wall Display Master Project Plugin
*   XL TestView Plugin

**Descriptions****Configuration as Code Plugin failed to mask secrets in system log messages**

**SECURITY-1497 / CVE-2019-10367**  
**Severity (CVSS):** Medium  
**Affected plugin: configuration-as-code**  
**Description:**

Configuration as Code Plugin logs the changes it applies to the Jenkins system log. Secrets such as passwords should be masked (i.e. replaced with asterisks) in that log to prevent accidental disclosure. Configuration as Code Plugin inspects the type and looks for a field, getter, or constructor argument corresponding to the property, making the secret detection much more robust for the purpose of log message masking. This was implemented in the fix for SECURITY-1279 in the 2019-07-31 security advisory.

That fix was incomplete and did not cover a log message written to the logger io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator.

Configuration as Code Plugin now uses the same secret detection for these log messages.

As a workaround, administrators can configure the logging level of the logger io.jenkins.plugins.casc.impl.configurators.DataBoundConfigurator to a level that does not include these messages. Configuration as Code Plugin 1.25 and earlier logs these messages at the INFO level, Configuration as Code Plugin 1.26 logs them at FINE. See the logging documentation for details.

**CSRF vulnerability and missing permission check in JClouds Plugin allowed capturing credentials**

**SECURITY-1482 / CVE-2019-10368 (CSRF), CVE-2019-10369 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: jclouds-jenkins**  
**Description:**

JClouds Plugin did not perform permission checks on a method implementing form validation. This allowed users with Overall/Read access to Jenkins to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, this form validation method did not require POST requests, resulting in a cross-site request forgery vulnerability.

This form validation method now requires POST requests and Overall/Administer permission.

**Mask Passwords Plugin shows plain text passwords in global configuration form fields**

**SECURITY-157 / CVE-2019-10370**  
**Severity (CVSS):** Low  
**Affected plugin: mask-passwords**  
**Description:**

Mask Passwords Plugin allows specifying passwords to be provided to builds in the global Jenkins configuration.

While the passwords are stored encrypted on disk, they are transmitted in plain text as part of the configuration form. This can result in exposure of the password through browser extensions, cross-site scripting vulnerabilities, and similar situations.

As of publication of this advisory, there is no fix.

**HTTP session fixation vulnerability in GitLab Authentication Plugin**

**SECURITY-795 / CVE-2019-10371**  
**Severity (CVSS):** Medium  
**Affected plugin: gitlab-oauth**  
**Description:**

GitLab Authentication Plugin does not invalidate the previous session and create a new one upon successful login. This allows attackers able to control or obtain another user’s pre-login session ID to impersonate them.

As of publication of this advisory, there is no fix.

**Open redirect vulnerability in GitLab Authentication Plugin**

**SECURITY-796 / CVE-2019-10372**  
**Severity (CVSS):** Medium  
**Affected plugin: gitlab-oauth**  
**Description:**

GitLab Authentication Plugin records the HTTP Referer header when the authentication process starts and redirects users to that URL when the user has finished logging in.

This implements an open redirect, allowing malicious sites to implement a phishing attack, with users expecting they have just logged in to Jenkins.

As of publication of this advisory, there is no fix.

**Stored XSS vulnerability in Build Pipeline Plugin**

**SECURITY-879 / CVE-2019-10373**  
**Severity (CVSS):** Medium  
**Affected plugin: build-pipeline-plugin**  
**Description:**

Build Pipeline Plugin does not properly escape variables in views, resulting in a stored cross-site scripting vulnerability exploitable by users with permission to configure build pipelines.

As of publication of this advisory, there is no fix.

**Stored XSS vulnerability in PegDown Formatter Plugin**

**SECURITY-142 / CVE-2019-10374**  
**Severity (CVSS):** Medium  
**Affected plugin: pegdown-formatter**  
**Description:**

PegDown Formatter Plugin uses the PegDown library to implement support for rendering Markdown formatted descriptions in Jenkins. It advertises disabling of HTML to prevent cross-site scripting (XSS) as a feature.

PegDown Formatter Plugin does not prevent the use of javascript: scheme in URLs for links. This results in an XSS vulnerability exploitable by users able to configure entities with descriptions or similar properties that are rendered by the configured markup formatter.

As of publication of this advisory, there is no fix.

**Arbitrary file read vulnerability in File System SCM Plugin**

**SECURITY-569 / CVE-2019-10375**  
**Severity (CVSS):** Medium  
**Affected plugin: filesystem_scm**  
**Description:**

File System SCM Plugin allows users able to configure jobs to read arbitrary files from the Jenkins controller, even if the job is running on an agent.

As of publication of this advisory, there is no fix.

**Reflected XSS vulnerability in Wall Display Master Project Plugin**

**SECURITY-751 / CVE-2019-10376**  
**Severity (CVSS):** Medium  
**Affected plugin: jenkinswalldisplay**  
**Description:**

Wall Display Master Project Plugin does not properly escape the customTheme query parameter, resulting in a reflected cross-site scripting vulnerability.

As of publication of this advisory, there is no fix.

**Avatar Plugin allows changing other users' avatars**

**SECURITY-1099 / CVE-2019-10377**  
**Severity (CVSS):** Medium  
**Affected plugin: avatar**  
**Description:**

Avatar Plugin does not implement a permission check for the HTTP URL used to replace user avatars. This allows any user with Overall/Read permission to change any other user’s avatar, in addition to their own.

As of publication of this advisory, there is no fix.

**TestLink Plugin stores credentials in plain text**

**SECURITY-1428 / CVE-2019-10378**  
**Severity (CVSS):** Low  
**Affected plugin: testlink**  
**Description:**

TestLink Plugin stores credentials unencrypted in its global configuration file hudson.plugins.testlink.TestLinkBuilder.xml on the Jenkins controller. These credentials can be viewed by users with access to the Jenkins controller file system.

As of publication of this advisory, there is no fix.

**Google Cloud Messaging Notification Plugin stores credentials in plain text**

**SECURITY-591 / CVE-2019-10379**  
**Severity (CVSS):** Low  
**Affected plugin: gcm-notification**  
**Description:**

Google Cloud Messaging Notification Plugin stores an API key unencrypted in its global configuration file org.jenkinsci.plugins.gcm.im.GcmPublisher.xml on the Jenkins controller. These credentials can be viewed by users with access to the Jenkins controller file system.

As of publication of this advisory, there is no fix.

**Script sandbox bypass vulnerability in Simple Travis Pipeline Runner Plugin**

**SECURITY-922 / CVE-2019-10380**  
**Severity (CVSS):** High  
**Affected plugin: simple-travis-runner**  
**Description:**

Simple Travis Pipeline Runner Plugin defines a custom list of pre-approved signatures for scripts protected by the Script Security sandbox.

This custom list of pre-approved signatures allows the use of methods that can be used to bypass Script Security sandbox protection. This results in arbitrary code execution on any Jenkins instance with this plugin installed.

As of publication of this advisory, there is no fix.

**Codefresh Integration Plugin globally and unconditionally disables SSL/TLS certificate validation**

**SECURITY-931 / CVE-2019-10381**  
**Severity (CVSS):** Medium  
**Affected plugin: codefresh**  
**Description:**

Codefresh Integration Plugin unconditionally disables SSL/TLS certificate validation for the entire Jenkins controller JVM.

As of publication of this advisory, there is no fix.

**VMware Lab Manager Slaves Plugin globally and unconditionally disables SSL/TLS certificate validation**

**SECURITY-1376 / CVE-2019-10382**  
**Severity (CVSS):** Medium  
**Affected plugin: labmanager**  
**Description:**

VMware Lab Manager Slaves Plugin unconditionally disables SSL/TLS certificate validation for the entire Jenkins controller JVM.

As of publication of this advisory, there is no fix.

**eggplant-plugin Plugin stores credentials in plain text**

**SECURITY-1430 / CVE-2019-10385**  
**Severity (CVSS):** Medium  
**Affected plugin: eggplant-plugin**  
**Description:**

eggplant-plugin Plugin stores credentials unencrypted in job config.xml files on the Jenkins controller. These credentials can be viewed by users with Extended Read permission, or access to the Jenkins controller file system.

As of publication of this advisory, there is no fix.

**CSRF vulnerability and missing permission check in XL TestView Plugin allow capturing credentials**

**SECURITY-1008 / CVE-2019-10386 (CSRF), CVE-2019-10387 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: xltestview-plugin**  
**Description:**

XL TestView Plugin does not perform permission checks on a method implementing form validation. This allows users with Overall/Read access to Jenkins to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing credentials stored in Jenkins.

Additionally, this form validation method does not require POST requests, resulting in a cross-site request forgery vulnerability.

As of publication of this advisory, there is no fix.

**CSRF vulnerability and missing permission check in Relution Enterprise Appstore Publisher Plugin allow SSRF**

**SECURITY-1053 / CVE-2019-10388 (CSRF), CVE-2019-10389 (permission check)**  
**Severity (CVSS):** Medium  
**Affected plugin: relution-publisher**  
**Description:**

A missing permission check in a form validation method in Relution Enterprise Appstore Publisher Plugin allows users with Overall/Read permission to initiate a connection test to an attacker-specified URL using attacker-specified credentials and attacker-specified HTTP proxy configuration.

Additionally, the form validation method does not require POST requests, resulting in a CSRF vulnerability.

As of publication of this advisory, there is no fix.

**Severity**

*   SECURITY-142: Medium
*   SECURITY-157: Low
*   SECURITY-569: Medium
*   SECURITY-591: Low
*   SECURITY-751: Medium
*   SECURITY-795: Medium
*   SECURITY-796: Medium
*   SECURITY-879: Medium
*   SECURITY-922: High
*   SECURITY-931: Medium
*   SECURITY-1008: Medium
*   SECURITY-1053: Medium
*   SECURITY-1099: Medium
*   SECURITY-1376: Medium
*   SECURITY-1428: Low
*   SECURITY-1430: Medium
*   SECURITY-1482: Medium
*   SECURITY-1497: Medium

**Affected Versions**

*   **Avatar Plugin** up to and including 1.2
*   **Build Pipeline Plugin** up to and including 1.5.8
*   **Codefresh Integration Plugin** up to and including 1.8
*   **Configuration as Code Plugin** up to and including 1.26
*   **eggplant-plugin Plugin** up to and including 2.2
*   **File System SCM Plugin** up to and including 2.1
*   **Google Cloud Messaging Notification Plugin** up to and including 1.0
*   **GitLab Authentication Plugin** up to and including 1.4
*   **JClouds Plugin** up to and including 2.14
*   **Mask Passwords Plugin** up to and including 2.12.0
*   **PegDown Formatter Plugin** up to and including 1.3
*   **Relution Enterprise Appstore Publisher Plugin** up to and including 1.24
*   **Simple Travis Pipeline Runner Plugin** up to and including 1.0
*   **TestLink Plugin** up to and including 3.16
*   **VMware Lab Manager Slaves Plugin** up to and including 0.2.8
*   **Wall Display Master Project Plugin** up to and including 0.6.34
*   **XL TestView Plugin** up to and including 1.2.0

**Fix**

*   **Configuration as Code Plugin** should be updated to version 1.27
*   **JClouds Plugin** should be updated to version 2.15

These versions include fixes to the vulnerabilities described above. All prior versions are considered to be affected by these vulnerabilities unless otherwise indicated.

As of publication of this advisory, no fixes are available for the following plugins:

*   Avatar Plugin
*   Build Pipeline Plugin
*   Codefresh Integration Plugin
*   eggplant-plugin Plugin
*   File System SCM Plugin
*   Google Cloud Messaging Notification Plugin
*   GitLab Authentication Plugin
*   Mask Passwords Plugin
*   PegDown Formatter Plugin
*   Relution Enterprise Appstore Publisher Plugin
*   Simple Travis Pipeline Runner Plugin
*   TestLink Plugin
*   VMware Lab Manager Slaves Plugin
*   Wall Display Master Project Plugin
*   XL TestView Plugin

Learn why we announce these issues.

**Credit**

The Jenkins project would like to thank the reporters for discovering and reporting these vulnerabilities:

*   **Daniel Beck, CloudBees, Inc.** for SECURITY-879, SECURITY-931, SECURITY-1053, SECURITY-1376
*   **David Fiser of Trend Micro Nebula working with Trend Micro's Zero Day Initiative** for SECURITY-1428, SECURITY-1430
*   **Jesse Glick, CloudBees, Inc.** for SECURITY-922
*   **MWR labs (@mwrlabs)** for SECURITY-751
*   **Matthias Schmalz, SAP SE** for SECURITY-157
*   **Oleg Nenashev, CloudBees, Inc.** for SECURITY-1008, SECURITY-1099
*   **Oleg Nenashev, CloudBees, Inc., and, independently, Viktor Gazdag NCC Group** for SECURITY-1482
*   **Wadeck Follonier, CloudBees, Inc.** for SECURITY-795, SECURITY-796

CVE-2019-10371: Jenkins Security Advisory 2019-08-07

An open redirect vulnerability in Jenkins Gitlab Authentication Plugin 1.4 and earlier in GitLabSecurityRealm.java allows attackers to redirect users to a URL outside Jenkins after successful login.

CVE-2019-10372: Jenkins Security Advisory 2019-08-07

A stored cross-site scripting vulnerability in Jenkins PegDown Formatter Plugin 1.3 and earlier allows attackers able to edit descriptions and other fields rendered using the configured markup formatter to insert links with the javascript scheme into the Jenkins UI.

CVE-2019-10374: Jenkins Security Advisory 2019-08-07

A stored cross-site scripting vulnerability in Jenkins Build Pipeline Plugin 1.5.8 and earlier allows attackers able to edit the build pipeline description to inject arbitrary HTML and JavaScript in the plugin-provided web pages in Jenkins.

CVE-2019-10373: Jenkins Security Advisory 2019-08-07

Due to an incomplete fix of CVE-2019-10343, Jenkins Configuration as Code Plugin 1.26 and earlier did not properly apply masking to some values expected to be hidden when logging the configuration being applied.

CVE-2019-10367: Jenkins Security Advisory 2019-08-07

A reflected cross-site scripting vulnerability in Jenkins Wall Display Plugin 0.6.34 and earlier allows attackers to inject arbitrary HTML and JavaScript into web pages provided by this plugin.

Tag

#vmware