Buffer overflow in Apple Mac OS X
CVE-2017-4933
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.
Vulnerability class: Buffer Overflow
EPSS: 0.036 (88.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apple Mac_os_x
- Vmware Esxi — versions 6.5 before ESXi650-201710401-BG, 6.5
- Vmware Fusion — versions 8.x before 8.5.9
- Vmware Workstation — versions 12.x before 12.5.8
- Vmware Workstation_pro — versions 14.0, 14.1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@vmware.com (x_refsource_CONFIRM, Issue Tracking, Vendor Advisory)
- security@vmware.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@vmware.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
Frequently asked questions
- What is CVE-2017-4933?
- CVE-2017-4933 is a high-severity vulnerability in Apple Mac OS X, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2017-12-20.
- How severe is CVE-2017-4933?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-4933 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.