Vulnerability Description
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 16.7 |
| Apple | Iphone Os | < 16.7 |
| Apple | Macos | >= 12.0.0, < 12.7 |
| Apple | Tvos | < 17.0 |
| Apple | Watchos | < 10.0 |
References
- http://seclists.org/fulldisclosure/2023/Oct/10Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/3
- http://seclists.org/fulldisclosure/2023/Oct/4
- http://seclists.org/fulldisclosure/2023/Oct/5Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2023/Oct/6
- http://seclists.org/fulldisclosure/2023/Oct/8
- http://seclists.org/fulldisclosure/2023/Oct/9
- https://support.apple.com/en-us/HT213927Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213931Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213932Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213936Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213937Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213938Release NotesVendor Advisory
- https://support.apple.com/en-us/HT213940Release NotesVendor Advisory
- http://seclists.org/fulldisclosure/2023/Oct/10Mailing ListThird Party Advisory
FAQ
What is CVE-2023-40420?
CVE-2023-40420 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.6, tvOS 17, iOS 16.7 and iPadOS 16.7, macOS Monterey 12.7, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma...
How severe is CVE-2023-40420?
CVE-2023-40420 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-40420?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos.