Buffer overflow in Apple Mac OS X
CVE-2020-3982
VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds write vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this vulnerability to crash the virtual machine's vmx process or corrupt hypervisor's memory heap.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (57.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Apple Mac OS X
- VMware Cloud Foundation
- VMware Esxi — versions 7.0.0, 6.7, 6.5
- VMware Fusion
- VMware Workstation
- VMware Workstation Player
- VMware Esxi, Workstation, Fusion — versions VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6)
Weakness classification (CWE)
References
- www.vmware.com/security/advisories/VMSA-2020-0023.html (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3982?
- CVE-2020-3982 is a high-severity vulnerability in Apple Mac OS X, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.7/10. Published 2020-10-20.
- How severe is CVE-2020-3982?
- High severity. CVSS v3 base score is 7.7 out of 10.