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.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Security Update - Catalina | >= unspecified, < 2021 |
| Apple | iOS | >= unspecified, < 14.7 |
| Apple | macOS | >= unspecified, < 11.5 |
| Apple | macOS | >= unspecified, < 2021 |
| Apple | macOS | >= unspecified, < 14.7 |
| Apple | macOS | >= unspecified, < 7.6 |
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
Timeline
- Published
- Sep 8, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified