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VMware ESXi (6.5 before ESXi650-201710401-BG), Workstation (12.x before 12.5.8), and Fusion (8.x before 8.5.9) contain a vulnerability that could allow an authenticated VNC session to cause a heap overflow via a specific set of VNC packets resulting in heap corruption. Successful exploitation of this issue could result in remote code execution in a virtual machine via the authenticated VNC session. Note: In order for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file. In addition, ESXi must be configured to allow VNC traffic through the built-in firewall.
Source: MITRE View Analysis Description
Source: MITRE
Base Score: 7.5 HIGH Vector: AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H (V3 legend) Impact Score: 5.9 Exploitability Score: 1.6
Attack Vector (AV): Network Attack Complexity (AC): High Privileges Required (PR): Low User Interaction (UI): None Scope (S): Unchanged Confidentiality (C): High Integrity (I): High Availability (A): High
Base Score: 6.0 MEDIUM Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P) (V2 legend) Impact Subscore: 6.4 Exploitability Subscore: 6.8
Access Vector (AV): Network Access Complexity (AC): Medium Authentication (AU): Single Confidentiality (C): Partial Integrity (I): Partial Availability (A): Partial Additional Information: Allows unauthorized disclosure of informationAllows unauthorized modificationAllows disruption of service
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Vulnerability Type (View All)
OR *cpe:2.3:a:vmware:fusion:8.0.0:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.0.1:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.0.2:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.1.0:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.0:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.1:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.2:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.3:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.4:*:*:*:*:*:*:* *cpe:2.3:a:vmware:fusion:8.5.5:*:*:*:*:*:*
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-119
http://www.securitytracker.com/id/1040024 No Types Assigned
http://www.securitytracker.com/id/1040024 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040025 No Types Assigned
http://www.securitytracker.com/id/1040025 Third Party Advisory, VDB Entry
https://www.vmware.com/security/advisories/VMSA-2017-0021.html No Types Assigned
https://www.vmware.com/security/advisories/VMSA-2017-0021.html Issue Tracking, Vendor Advisory
http://www.securitytracker.com/id/1040024 [No Types Assigned]
http://www.securitytracker.com/id/1040025 [No Types Assigned]