PT-2021-18811 · Apple · Ios+2

Junzhi Lu + 3 · Published 2021-05-24 · Updated 2021-09-17 · CVE-2021-30693

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 macOS versions prior to 11.4 Security Update versions prior to 2021-003 on Catalina Security Update versions prior to 2021-004 on Mojave iOS versions prior to 14.6 iPadOS versions prior to 14.6

Description A validation issue was addressed with improved logic. Processing a maliciously crafted image may lead to arbitrary code execution.

Recommendations For macOS versions prior to 11.4, update to macOS Big Sur 11.4. For Security Update versions prior to 2021-003 on Catalina, apply Security Update 2021-003. For Security Update versions prior to 2021-004 on Mojave, apply Security Update 2021-004. For iOS versions prior to 14.6, update to iOS 14.6. For iPadOS versions prior to 14.6, update to iPadOS 14.6.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2021-30693

ZDI-21-763

Affected Products

Apple Macos

Ios

Ipados

References · 10

• https://support.apple.com/en-us/HT212528 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-30693 · Security Note
• https://osv.dev/vulnerability/CVE-2021-30693 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-763 · Security Note
• https://support.apple.com/en-us/HT212530 · Vendor Advisory
• https://support.apple.com/en-us/HT212529 · Vendor Advisory
• https://support.apple.com/en-us/HT212531 · Vendor Advisory
• https://support.apple.com/en-us/103131 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30693 · Note
• https://t.me/cibsecurity/28488 · Telegram Post