PT-2021-5286 · Apple · Ipados+3

Published 2021-04-26 · Updated 2021-09-14 · CVE-2021-30764

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Apple iOS versions prior to 14.5 Apple iPadOS versions prior to 14.5 Apple watchOS versions prior to 7.4 Apple tvOS versions prior to 14.5

Description The issue is related to the processing of maliciously crafted files, which may lead to arbitrary code execution. This is due to a buffer out-of-bounds operation in the ImageIO component of the affected operating systems. An attacker could exploit this by using a specially crafted WEBP file, potentially allowing them to execute arbitrary code.

Recommendations 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.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2021-06112

CVE-2021-30764

ZDI-21-893

Affected Products

Ios

Ipados

Tvos

Watchos

References · 8

• https://osv.dev/vulnerability/CVE-2021-30764 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30764 · Security Note
• https://support.apple.com/en-us/HT212323 · Vendor Advisory
• https://support.apple.com/en-us/HT212324 · Vendor Advisory
• https://support.apple.com/en-us/HT212317 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-06112 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-893 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021072243 · Note