Vulnerability Description
This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted dfont file may lead to arbitrary code execution.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 14.8 |
| Apple | Iphone Os | < 14.8 |
| Apple | Mac Os X | >= 10.15, <= 10.15.6 |
| Apple | Macos | >= 11.0, < 11.6 |
| Apple | Tvos | < 15.0 |
| Apple | Watchos | < 8.0 |
References
- http://seclists.org/fulldisclosure/2021/Oct/61Mailing ListRelease NotesThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/62Mailing ListRelease NotesThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/63Mailing ListRelease NotesThird Party Advisory
- https://support.apple.com/en-us/HT212804Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212805Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212807Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212814Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212815Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212819Release NotesVendor Advisory
- http://seclists.org/fulldisclosure/2021/Oct/61Mailing ListRelease NotesThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/62Mailing ListRelease NotesThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Oct/63Mailing ListRelease NotesThird Party Advisory
- https://support.apple.com/en-us/HT212804Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212805Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212807Release NotesVendor Advisory
FAQ
What is CVE-2021-30842?
CVE-2021-30842 is a vulnerability with a CVSS score of 7.8 (HIGH). This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Process...
How severe is CVE-2021-30842?
CVE-2021-30842 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-30842?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Macos, Apple Tvos.