Vulnerability Description
A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to modify protected parts of the file system.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | >= 10.14, <= 10.14.5 |
| Apple | Macos | >= 11.0, < 11.3 |
References
- https://support.apple.com/en-us/HT212325Vendor Advisory
- https://support.apple.com/en-us/HT212326Vendor Advisory
- https://support.apple.com/en-us/HT212327Vendor Advisory
- https://support.apple.com/en-us/HT212325Vendor Advisory
- https://support.apple.com/en-us/HT212326Vendor Advisory
- https://support.apple.com/en-us/HT212327Vendor Advisory
FAQ
What is CVE-2021-1784?
CVE-2021-1784 is a vulnerability with a CVSS score of 7.5 (HIGH). A permissions issue existed in DiskArbitration. This was addressed with additional ownership checks. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-...
How severe is CVE-2021-1784?
CVE-2021-1784 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-1784?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Apple Macos.