CVE-2021-30760

HIGH

Apple OSes - Code Execution via Malicious Font File

Title source: manual
STIX 2.1

Description

An integer overflow was addressed through 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.

References (6)

Core 6
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212601
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212602
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212605
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212600
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212603
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212604

Scores

CVSS v3 7.8
EPSS 0.0129
EPSS Percentile 66.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-190
Status published
Products (21)
apple/ipados < 14.7
apple/iphone_os < 14.7
apple/mac_os_x 10.14
apple/mac_os_x 10.14.0
apple/mac_os_x 10.14.1
apple/mac_os_x 10.14.2
apple/mac_os_x 10.14.3
apple/mac_os_x 10.14.4
apple/mac_os_x 10.14.5
apple/mac_os_x 10.14.6 (21 CPE variants)
... and 11 more
Published Sep 08, 2021
Tracked Since Feb 18, 2026