CVE-2021-1881

high

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary code execution.

References

https://support.apple.com/en-us/HT212327

https://support.apple.com/en-us/HT212326

https://support.apple.com/en-us/HT212325

https://support.apple.com/en-us/HT212324

https://support.apple.com/en-us/HT212323

https://support.apple.com/en-us/HT212317

Details

Source: Mitre, NVD

Published: 2021-09-08

Updated: 2021-09-17

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