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AUSCERT External Security Bulletin Redistribution
ESB-2018.0131.2
VMware Workstation, and Fusion updates resolve
use-after-free and integer-overflow vulnerabilities
12 January 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: VMware Workstation
VMware Fusion
Publisher: VMWare
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-4950 CVE-2017-4949
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2018-0005.html
Revision History: January 12 2018: Updated Product Tag
January 12 2018: Initial Release
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VMSA-2018-0005
VMware Workstation, and Fusion updates resolve use-after-free and
integer-overflow vulnerabilities
VMware Security Advisory
Advisory ID:
VMSA-2018-0005
Severity:
Critical
Synopsis:
VMware Workstation, and Fusion updates resolve use-after-free and
integer-overflow vulnerabilities
Issue date:
2018-01-10
Updated on:
2018-01-10 (Initial Advisory)
CVE numbers:
CVE-2017-4949, CVE-2017-4950
1. Summary
VMware Workstation, and Fusion updates resolve use-after-free and
integer-overflow vulnerabilities
2. Relevant Products
VMware Workstation Pro / Player (Workstation)
VMware Fusion Pro / Fusion (Fusion)
3. Problem Description
a. Use-after-free vulnerability in VMware NAT service
VMware Workstation and Fusion contain a use-after-free vulnerability in VMware
NAT service when IPv6 mode is enabled. This issue may allow a guest to execute
code on the host.
Note: IPv6 mode for VMNAT is not enabled by default.
VMware would like to thank WenQunWang of Tencent's Xuanwu LAB for reporting
this issue to us.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the identifier CVE-2017-4949 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
Workstation 14.x Any Critical 14.1.1 None
Workstation 12.x Any Critical 12.5.9 None
Fusion 10.x OS X Critical 10.1.1 None
Fusion 8.x OS X Critical 8.5.10 None
b. Integer-overflow vulnerability in VMware NAT service
VMware Workstation and Fusion contain an integer overflow vulnerability in
VMware NAT service when IPv6 mode is enabled. This issue may lead to an
out-of-bound read which can then be used to execute code on the host in
conjunction with other issues.
Note: IPv6 mode for VMNAT is not enabled by default.
VMware would like to thank WenQunWang of Tencent's Xuanwu LAB for reporting
this issue to us.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the identifier CVE-2017-4950 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
Workstation 14.x Any Important 14.1.1 None
Workstation 12.x Any Important 12.5.9 None
Fusion 10.x OS X Important 10.1.1 None
Fusion 8.x OS X Important 8.5.10 None
4. Solution
Please review the patch/release notes for your product and version and verify
the checksum of your downloaded file.
VMware Workstation Pro 14.1.1
Downloads and Documentation:
https://www.vmware.com/go/downloadworkstation
https://www.vmware.com/support/pubs/ws_pubs.html
VMware Workstation Player 14.1.1
Downloads and Documentation:
https://www.vmware.com/go/downloadplayer
https://www.vmware.com/support/pubs/player_pubs.html
VMware Workstation Pro 12.5.9
Downloads and Documentation:
https://my.vmware.com/web/vmware/info/slug/desktop_end_user_computing/vmware_workstation_pro/12_0
https://www.vmware.com/support/pubs/ws_pubs.html
VMware Workstation Player 12.5.9
Downloads and Documentation:
https://my.vmware.com/en/web/vmware/free#desktop_end_user_computing/vmware_workstation_player/12_0
https://www.vmware.com/support/pubs/player_pubs.html
VMware Fusion Pro / Fusion 10.1.1
Downloads and Documentation:
https://www.vmware.com/go/downloadfusion
https://www.vmware.com/support/pubs/fusion_pubs.html
VMware Fusion Pro / Fusion 8.5.10
Downloads and Documentation:
https://my.vmware.com/web/vmware/info/slug/desktop_end_user_computing/vmware_fusion/8_0
https://www.vmware.com/support/pubs/fusion_pubs.html
5. References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-4949
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-4950
6. Change log
2018-01-10 VMSA-2017-0005
Initial security advisory in conjunction with the release of VMware
Workstation 12.5.9 on 2018-01-10.
7. Contact
E-mail list for product security notifications and announcements:
http://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
http://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
Copyright 2018 VMware Inc. All rights reserved.
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