Vulnerability Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. A malicious application may be able to read restricted memory.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 14.0 |
| Apple | Iphone Os | < 14.0 |
| Apple | Mac Os X | < 11.0.1 |
| Apple | Tvos | < 14.0 |
| Apple | Watchos | < 7.0 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2020/Dec/26Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
- https://support.apple.com/en-us/HT211843Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211844Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211850Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211931Release NotesVendor Advisory
- https://support.apple.com/kb/HT212011Vendor Advisory
- http://seclists.org/fulldisclosure/2020/Dec/26Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
- https://support.apple.com/en-us/HT211843Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211844Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211850Release NotesVendor Advisory
- https://support.apple.com/en-us/HT211931Release NotesVendor Advisory
- https://support.apple.com/kb/HT212011Vendor Advisory
FAQ
What is CVE-2020-9943?
CVE-2020-9943 is a vulnerability with a CVSS score of 5.5 (MEDIUM). An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. A malicious application may be able to...
How severe is CVE-2020-9943?
CVE-2020-9943 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-9943?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos.