Vulnerability Description
A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. Processing a maliciously crafted font file may lead to arbitrary code execution.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 14.7 |
| Apple | Iphone Os | < 14.7 |
| Apple | Mac Os X | 10.14 |
| Apple | Macos | >= 11.0, < 11.5 |
| Apple | Tvos | < 14.7 |
| Apple | Watchos | < 7.6 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/HT212600Vendor Advisory
- https://support.apple.com/en-us/HT212601Vendor Advisory
- https://support.apple.com/en-us/HT212602Vendor Advisory
- https://support.apple.com/en-us/HT212603Vendor Advisory
- https://support.apple.com/en-us/HT212604Vendor Advisory
- https://support.apple.com/en-us/HT212605Vendor Advisory
- https://support.apple.com/en-us/HT212600Vendor Advisory
- https://support.apple.com/en-us/HT212601Vendor Advisory
- https://support.apple.com/en-us/HT212602Vendor Advisory
- https://support.apple.com/en-us/HT212603Vendor Advisory
- https://support.apple.com/en-us/HT212604Vendor Advisory
- https://support.apple.com/en-us/HT212605Vendor Advisory
FAQ
What is CVE-2021-30759?
CVE-2021-30759 is a vulnerability with a CVSS score of 7.8 (HIGH). A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Ca...
How severe is CVE-2021-30759?
CVE-2021-30759 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-2021-30759?
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.