PT-2020-17736 · Apple · Ios+3

Ian Beer · Published 2020-02-27 · Updated 2022-05-31 · CVE-2020-3843

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 iOS versions prior to 12.4.7 watchOS versions prior to 5.3.7 macOS (affected versions not specified)

Description A memory corruption issue was addressed with improved input validation. This issue allows a remote attacker to cause unexpected system termination or corrupt kernel memory. The issue is related to a wifi proximity kernel double-free vulnerability in AWDL BSS Steering. A proof of concept exploit has been demonstrated, showing the ability to remotely dump memory over the air with no user interaction.

Recommendations For iOS versions prior to 12.4.7, update to iOS 12.4.7 or later. For watchOS versions prior to 5.3.7, update to watchOS 5.3.7 or later. For macOS, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-3843

Affected Products

Awdl

Ios

Apple Macos

Watchos

References · 7

• https://support.apple.com/HT211176 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3843 · Vendor Advisory
• https://support.apple.com/HT211169 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3843 · Security Note
• http://packetstormsecurity.com/files/162119/iOS-macOS-Radio-Proximity-Kernel-Memory-Corruption.html · Note
• https://t.me/cybersecuritytechnologies/1330 · Telegram Post
• https://t.me/malwr/2633 · Telegram Post