PT-2021-13558 · Apple · Ios+2

Junzhi Lu + 1 · Published 2021-02-01 · Updated 2021-04-09 · CVE-2021-1767

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4

Description: Processing a maliciously crafted image may lead to heap corruption. This issue was addressed with improved checks.

Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-1767

ZDI-21-144

Affected Products

Apple Macos

Ios

Ipados

References · 8

• https://zerodayinitiative.com/advisories/ZDI-21-144 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-1767 · Security Note
• https://support.apple.com/en-us/HT212147 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-1767 · Vendor Advisory
• https://support.apple.com/en-us/HT212146 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1767 · Note
• https://support.apple.com/en-us/103124 · Note
• https://t.me/cvenotify/12555 · Telegram Post