PT-2021-5394 · Apple · Watchos+5

Jeonghoon Shin

+1

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Published

2021-02-25

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Updated

2023-01-09

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CVE-2021-30743

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions macOS versions prior to 11.3 iOS versions prior to 14.5 iPadOS versions prior to 14.5 watchOS versions prior to 7.4 tvOS versions prior to 14.5
Description The issue is related to an out-of-bounds write in the ImageIO component, which can be exploited by processing a maliciously crafted image, potentially leading to arbitrary code execution and unauthorized access to protected information.
Recommendations For macOS versions prior to 11.3, update to macOS Big Sur 11.3 or later. For iOS versions prior to 14.5, update to iOS 14.5 or later. For iPadOS versions prior to 14.5, update to iPadOS 14.5 or later. For watchOS versions prior to 7.4, update to watchOS 7.4 or later. For tvOS versions prior to 14.5, update to tvOS 14.5 or later. As a temporary workaround, consider avoiding the processing of untrusted images until a patch is applied.

Fix

Memory Corruption

Weakness Enumeration

Related Identifiers

BDU:2021-06233
CVE-2021-30743
ZDI-21-768
ZDI-21-784

Affected Products

Imageio
Apple Macos
Ios
Ipados
Tvos
Watchos