PT-2021-4676 · Apple · Ipados+4

Sunglin + 1 · Published 2021-05-24 · Updated 2023-01-09 · CVE-2021-30753

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions macOS versions prior to 11.4 tvOS versions prior to 14.6 watchOS versions prior to 7.5 iOS versions prior to 14.6 iPadOS versions prior to 14.6

Description The issue is related to the processing of maliciously crafted fonts, which may result in the disclosure of process memory due to an out-of-bounds read. This can potentially allow an attacker to access protected information. The problem was addressed with improved input validation.

Recommendations For macOS versions prior to 11.4, update to macOS Big Sur 11.4 or later. For tvOS versions prior to 14.6, update to tvOS 14.6 or later. For watchOS versions prior to 7.5, update to watchOS 7.5 or later. For iOS versions prior to 14.6, update to iOS 14.6 or later. For iPadOS versions prior to 14.6, update to iPadOS 14.6 or later.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2021-05369

CVE-2021-30753

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2021-30753 · Security Note
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30753 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05369 · Security Note
• https://support.apple.com/en-us/HT212532 · Vendor Advisory
• https://support.apple.com/en-us/HT212533 · Vendor Advisory
• https://support.apple.com/en-us/HT212528 · Vendor Advisory
• https://support.apple.com/en-us/103131 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30753 · Note