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Category:   Application (Generic)  >   VMware ESXi Vendors:   VMware
VMware ESXi Buffer Overflow and Memory Initialization Errors Let Local Guest System Users Obtain Potentially Sensitive Information and Execute Arbitrary Code on the Host System
SecurityTracker Alert ID:  1038149
SecurityTracker URL:  http://securitytracker.com/id/1038149
CVE Reference:   CVE-2017-4902, CVE-2017-4903, CVE-2017-4904, CVE-2017-4905   (Links to External Site)
Date:  Mar 28 2017
Impact:   Denial of service via local system, Disclosure of system information, Disclosure of user information, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.5, 6.0, 6.5
Description:   Multiple vulnerabilities were reported in VMware ESXi. A local user on the guest system can obtain potentially sensitive information and gain elevated privileges on the host system.

A local user on the guest system can trigger a heap overflow in SVGA to execute arbitrary code on the host system [CVE-2017-4902]. ESXi 6.0 is not affected.

A local user on the guest system can trigger an uninitialized stack memory usage error in SVGA to execute arbitrary code on the host system [CVE-2017-4903].

A local user on the guest system can trigger an uninitialized stack memory usage error in the XHCI controller to execute arbitrary code on the host system [CVE-2017-4904]. On ESXi 5.5, the impact is limited to denial of service conditions.

A local user on the guest system can trigger an uninitialized memory usage error to obtain potentially sensitive information on the host system [CVE-2017-4905].

ZDI and Team 360 Security from Qihoo and ZDI and Team Sniper from Tencent Security reported these vulnerabilities.

Impact:   A local user on the guest system can gain elevated privileges on the host system.

A local user on the guest system can obtain potentially sensitive information on the host system.

Solution:   The vendor has issued a fix.

The vendor advisory is available at:

http://www.vmware.com/security/advisories/VMSA-2017-0006.html

Vendor URL:  www.vmware.com/security/advisories/VMSA-2017-0006.html (Links to External Site)
Cause:   Access control error, Boundary error

Message History:   None.


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