CVE-2021-30759

high

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.

References

https://support.apple.com/en-us/HT212605

https://support.apple.com/en-us/HT212604

https://support.apple.com/en-us/HT212603

https://support.apple.com/en-us/HT212602

https://support.apple.com/en-us/HT212601

https://support.apple.com/en-us/HT212600

Details

Source: Mitre, NVD

Published: 2021-09-08

Updated: 2021-09-14

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High