PT-2021-18871 · Apple · Ios+3

Tr3E · Published 2021-07-21 · Updated 2021-09-15 · CVE-2021-30788

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Apple iOS versions prior to 14.7 Apple macOS versions prior to Big Sur 11.5 Apple watchOS versions prior to 7.6 Apple tvOS versions prior to 14.7 Apple macOS Mojave versions prior to Security Update 2021-005 Apple macOS Catalina versions prior to Security Update 2021-004

Description The issue arises from processing a maliciously crafted tiff file, which may lead to a denial-of-service or potentially disclose memory contents.

Recommendations For iOS versions prior to 14.7, update to iOS 14.7 or later. For macOS versions prior to Big Sur 11.5, update to macOS Big Sur 11.5 or later. For watchOS versions prior to 7.6, update to watchOS 7.6 or later. For tvOS versions prior to 14.7, update to tvOS 14.7 or later. For macOS Mojave versions prior to Security Update 2021-005, apply Security Update 2021-005 or later. For macOS Catalina versions prior to Security Update 2021-004, apply Security Update 2021-004 or later.

Fix

Related Identifiers

CVE-2021-30788

ZDI-21-945

Affected Products

Apple Macos

Ios

Tvos

Watchos

References · 11

• https://support.apple.com/en-us/HT212603 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-30788 · Vendor Advisory
• https://support.apple.com/en-us/HT212601 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-21-945 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-30788 · Security Note
• https://support.apple.com/en-us/HT212605 · Vendor Advisory
• https://support.apple.com/en-us/HT212600 · Vendor Advisory
• https://support.apple.com/en-us/HT212604 · Vendor Advisory
• https://support.apple.com/en-us/HT212602 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30788 · Note
• https://support.apple.com/en-us/102849 · Note