VMSA-2018-0027
VMware ESXi, Workstation, and Fusion updates address uninitialized stack memory usage.
VMware Security Advisory
1. Summary
VMware ESXi, Workstation, and Fusion updates address uninitialized stack memory usage.
2. Relevant Products
- VMware vSphere ESXi (ESXi)
- VMware Workstation Pro / Player (Workstation)
- VMware Fusion Pro, Fusion (Fusion)
3. Problem Description
a. vmxnet3 uninitialized stack memory usage
VMware ESXi, Fusion and Workstation contain uninitialized stack memory usage in the vmxnet3 virtual network adapter. This issue may allow a guest to execute code on the host. The issue is present if vmxnet3 is enabled. Non vmxnet3 virtual adapters are not affected by this issue.
VMware would like to thank the organizers of GeekPwn2018 and security researchers Zhangyanyu of Chaitin Tech and SmallerDragon for reporting this issue to us.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2018-6981 to this issue.
Column 5 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available.
VMware Product
Product Version
Running on
Severity
Replace with/ Apply Patch
Mitigation/ Workaround
b. vmxnet3 uninitialized stack memory usage
VMware ESXi, Fusion and Workstation contain uninitialized stack memory usage in the vmxnet3 virtual network adapter. This issue may lead to an information leak from host to guest. The issue is present if vmxnet3 is enabled. Non vmxnet3 virtual adapters are not affected by this issue.
VMware would like to thank the organizers of GeekPwn2018 and security researcher Zhangyanyu of Chaitin Tech for reporting this issue to us.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2018-6982 to this issue.
Column 5 of the following table lists the action required to remediate the vulnerability in each release, if a solution is available.
VMware Product
Product Version
Running on
Severity
Replace with/ Apply Patch
Mitigation/ Workaround
4. Solution
Please review the patch/release notes for your product and version and verify the checksum of your downloaded file.
ESXi 6.7
-------------
Downloads:
https://my.vmware.com/group/vmware/patch
Documentation:
https://docs.vmware.com/en/VMware-vSphere/6.7/rn/esxi670-201811001.html
ESXi 6.5
-------------
Downloads:
https://my.vmware.com/group/vmware/patch
Documentation:
https://docs.vmware.com/en/VMware-vSphere/6.5/rn/esxi650-201811001.html
ESXi 6.0
-------------
Downloads:
https://my.vmware.com/group/vmware/patch
Documentation:
https://docs.vmware.com/en/VMware-vSphere/6.0/rn/esxi600-201811001.html
VMware Workstation Pro 14.1.4, 15.0.1
Downloads and Documentation:
https://www.vmware.com/go/downloadworkstation
https://docs.vmware.com/en/VMware-Workstation-Pro/index.html
VMware Workstation Player 14.1.4, 15.0.1
Downloads and Documentation:
https://www.vmware.com/go/downloadplayer
https://docs.vmware.com/en/VMware-Workstation-Player/index.html
VMware Fusion Pro / Fusion 10.1.4, 11.0.1
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://docs.vmware.com/en/VMware-Fusion/index.html
6. Change log
VMSA-2018-0027 2018-11-09
Initial security advisory in conjunction with the release of ESXi 6.0, 6.5, 6.7 patches and VMware Workstation 14.1.4, 15.0.1 and Fusion 10.1.4, 11.0.1 on 2018-11-09.
7. 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:
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https://www.vmware.com/security/advisories
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https://www.vmware.com/support/policies/security_response.html
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VMware Security & Compliance Blog
https://blogs.vmware.com/security
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