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AUSCERT External Security Bulletin Redistribution
ESB-2019.2911
VMSA-2019-0012 VMware ESXi, Workstation and Fusion updates address
out-of-bounds read/write vulnerabilities (CVE-2019-5521, CVE-2019-5684)
5 August 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: VMware ESXi
VMware Workstation
VMware Fusion
Publisher: VMWare
Operating System: VMware ESX Server
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-5684 CVE-2019-5521
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2019-0012.html
- --------------------------BEGIN INCLUDED TEXT--------------------
VMware Security Advisories
+----------+------------------------------------------------------------------+
|Advisory |VMSA-2019-0012 |
|ID | |
+----------+------------------------------------------------------------------+
|Advisory |Important |
|Severity | |
+----------+------------------------------------------------------------------+
|CVSSv3 |6.3-8.5 |
|Range | |
+----------+------------------------------------------------------------------+
|Synopsis |VMware ESXi, Workstation and Fusion updates address out-of-bounds |
| |read/write vulnerabilities (CVE-2019-5521, CVE-2019-5684) |
+----------+------------------------------------------------------------------+
|Issue Date|2019-08-02 |
+----------+------------------------------------------------------------------+
|Updated On|2019-08-02 (Initial Advisory) |
+----------+------------------------------------------------------------------+
|CVE(s) |CVE-2019-5521, CVE-2019-5684 |
+----------+------------------------------------------------------------------+
1. Impacted Products
o VMware vSphere ESXi (ESXi)
o VMware Workstation Pro / Player (Workstation)
o VMware Fusion Pro / Fusion (Fusion)
2. Introduction
VMware ESXi, Workstation and Fusion updates address the following pixel shader
vulnerabilities:
o CVE-2019-5521 - Out-of-bounds read vulnerability - CVSSv3 = 6.3-7.7
o CVE-2019-5684 - Out-of-bounds write vulnerability - CVSSv3 = 8.5
3. VMware ESXi, Workstation and Fusion pixel shader out-of-bounds read/
write vulnerabilities (CVE-2019-5521, CVE-2019-5684)
Description:
VMware ESXi, Workstation and Fusion contain out-of-bounds read/write
vulnerabilities in the pixel shader functionality. VMware has evaluated the
severity of these issues to be in the Important severity range with a maximum
CVSSv3 base score of 8.5.
Known Attack Vectors:
Exploitation of these issues require an attacker to have access to a virtual
machine with 3D graphics enabled. It is not enabled by default on ESXi and is
enabled by default on Workstation and Fusion.
Successful exploitation of the out-of-bounds read issue (CVE-2019-5521) may
lead to information disclosure or may allow attackers with normal user
privileges to create a denial-of-service condition on the host.
The out-of-bounds write issue (CVE-2019-5684) can be exploited only if the host
has an affected NVIDIA graphics driver. Successful exploitation of this
issue may lead to code execution on the host. Customers should check NVIDIA
security advisory for additional information.
Resolution:
o To remediate these vulnerabilities, apply the patches listed in the 'Fixed
Version' column of the 'Resolution Matrix' found below.
o Alternatively, CVE-2019-5684 can be remediated by installing the updated
NVIDIA graphics driver.
Workarounds:
The workaround for these issues involves disabling the 3D-acceleration feature.
Please see the 'Workarounds' column of the 'Resolution Matrix' found below.
Additional Documentations:
None.
Acknowledgements:
VMware would like to thank Piotr Bania of Cisco Talos for reporting these
issues to us.
Response Matrix:
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
|Product |Version|Running|CVE |CVSSV3|Severity |Fixed Version |Workarounds |Additional|
| | |On |Identifier* | | | | |Documents |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|6.3/ | | | | |
|ESXi |6.7 |Any |/ |8.5 |Important|ESXi670-201904101-SG|see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|6.3/ | | | | |
|ESXi |6.5 |Any |/ |8.5 |Important|ESXi650-201903001 |see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521| | | | | |
|ESXi |6.0 |Any |/ |N/A |N/A |Not affected |N/A |N/A |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|7.7/ | | | | |
|Workstation|15.x |Any |/ |8.5 |Important|15.0.3 |see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|7.7/ | | | | |
|Workstation|14.x |Any |/ |8.5 |Important|14.1.6 |see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|7.7/ | | | | |
|Fusion |11.x |OSX |/ |8.5 |Important|11.0.3 |see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
| | | |CVE-2019-5521|7.7/ | | | | |
|Fusion |10.x |OSX |/ |8.5 |Important|10.1.6 |see VMSA-2018-0025|None |
| | | |CVE-2019-5684| | | | | |
+-----------+-------+-------+-------------+------+---------+--------------------+------------------+----------+
* CVE-2019-5684 is relevant if an affected NVIDIA graphics driver is present.
4. References
Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5521
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5684
NIVDIA security advisory link:
https://nvidia.custhelp.com/app/answers/detail/a_id/4841
Fixed Version(s) and Release Notes:
ESXi 6.7
Downloads and Documentation:
https://my.vmware.com/web/vmware/info/slug/datacenter_cloud_infrastructure/
vmware_vsphere/6_7
https://docs.vmware.com/en/VMware-vSphere/6.7/rn/
vsphere-esxi-67u2-release-notes.html
ESXi 6.5
Downloads and Documentation:
https://my.vmware.com/web/vmware/info/slug/datacenter_cloud_infrastructure/
vmware_vsphere/6_5
https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-201903001.html
VMware Workstation Pro 14.1.6, 15.0.3
Downloads and Documentation:
https://www.vmware.com/go/downloadworkstation
https://docs.vmware.com/en/VMware-Workstation-Pro/index.html
VMware Workstation Player 14.1.6, 15.0.3
Downloads and Documentation:
https://www.vmware.com/go/downloadplayer
https://docs.vmware.com/en/VMware-Workstation-Player/index.html
VMware Fusion Pro / Fusion 10.1.6, 11.0.3
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://docs.vmware.com/en/VMware-Fusion/index.html
5. Change log
2019-08-02: VMSA-2019-0012 - Initial security advisory.
6. Contact
E-mail list for product security notifications and announcements:
https://lists.vmware.com/cgi-bin/mailman/listinfo/security-announce
This Security Advisory is posted to the following lists:
security-announce@lists.vmware.com
bugtraq@securityfocus.com
fulldisclosure@seclists.org
E-mail: security@vmware.com
PGP key at:
https://kb.vmware.com/kb/1055
VMware Security Advisories
https://www.vmware.com/security/advisories
VMware Security Response Policy
https://www.vmware.com/support/policies/security_response.html
VMware Lifecycle Support Phases
https://www.vmware.com/support/policies/lifecycle.html
VMware Security & Compliance Blog
https://blogs.vmware.com/security
Twitter
https://twitter.com/VMwareSRC
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