PT-2020-20893 · Apple · Apple Macos+4

Mickey Jin + 1 · Published 2020-11-12 · Updated 2021-04-07 · CVE-2020-9955

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 watchOS versions prior to 7.0 tvOS versions prior to 14.0 iOS versions prior to 14.0 iPadOS versions prior to 14.0 macOS versions prior to Big Sur 11.0.1

Description An out-of-bounds write issue was addressed with improved bounds checking. Processing a maliciously crafted image may lead to arbitrary code execution.

Recommendations For watchOS versions prior to 7.0, update to watchOS 7.0 or later. For tvOS versions prior to 14.0, update to tvOS 14.0 or later. For iOS versions prior to 14.0, update to iOS 14.0 or later. For iPadOS versions prior to 14.0, update to iPadOS 14.0 or later. For macOS versions prior to Big Sur 11.0.1, update to macOS Big Sur 11.0.1 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-9955

ZDI-20-1410

Affected Products

Apple Macos

Ios

Ipados

Tvos

Watchos

References · 9

• https://zerodayinitiative.com/advisories/ZDI-20-1410 · Security Note
• https://support.apple.com/en-us/HT211931 · Vendor Advisory
• https://support.apple.com/en-us/HT211843 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-9955 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-9955 · Security Note
• https://support.apple.com/en-us/HT211844 · Vendor Advisory
• https://support.apple.com/en-us/HT211850 · Vendor Advisory
• https://support.apple.com/en-us/102846 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9955 · Note