Apple addressed two actively exploited zero-day flaws

Apple released emergency security updates to address two actively exploited zero-day vulnerabilities impacting iPhones, Macs, and iPads.

Apple has released emergency security updates to address two actively exploited zero-day vulnerabilities, tracked as CVE-2023-28205 and CVE-2023-28206, impacting iPhones, Macs, and iPads.

Impacted devices include:

• iPhone 8 and later,
• iPad Pro (all models),
• iPad Air 3rd generation and later,
• iPad 5th generation and later,
• iPad mini 5th generation and later,
• and Macs running macOS Ventura.

Both vulnerabilities were reported by Clément Lecigne of Google’s Threat Analysis Group and Donncha Ó Cearbhaill of Amnesty International’s Security Lab.

Super proud of our team at @AmnestyTech and everyone who helped in this investigation.

Today, Apple published an emergency update for all iPhones to patch an exploit chain which we, together with @_clem1 (Google TAG) discovered in the wild. pic.twitter.com/KLMYjqi3lK

— Donncha Ó Cearbhaill (@DonnchaC) April 7, 2023

The zero-day CVE-2023-28205 is a use after free issue that resides in the WebKit, its exploitation may lead to arbitrary code execution. An attacker can trigger the flaw by tricking the victims into loading maliciously crafted web pages.

“Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.” reads the advisory.

The IT giant addressed the flaw with improved memory management.

The zero-day CVE-2023-28206 is an out-of-bounds write issue that resides in the IOSurfaceAccelerator.

“An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.” reads the advisory.

The company addressed the flaw with improved input validation.

Apple addressed the zero-day issue with the release of macOS Ventura 13.3.1, iOS 16.4.1, iPadOS 16.4.1, and Safari 16.4.1.

In February, the company released emergency security updates to address an actively exploited zero-day vulnerability, tracked as CVE-2023-23529, that impacts iOS, iPadOS, and macOS. The flaw is a type confusion issue in WebKit that was addressed by the IT giant with improved checks.

An attacker can achieve arbitrary code execution by tricking the victims into visiting maliciously crafted web content.

Please vote for Security Affairs (https://securityaffairs.com/) as the best European Cybersecurity Blogger Awards 2022 – VOTE FOR YOUR WINNERS
Vote for me in the sections:

• The Teacher – Most Educational Blog
• The Entertainer – Most Entertaining Blog
• The Tech Whizz – Best Technical Blog
• Best Social Media Account to Follow (@securityaffairs)

Please nominate Security Affairs as your favorite blog.

Nominate here: https://docs.google.com/forms/d/e/1FAIpQLSfaFMkrMlrLhOBsRPKdv56Y4HgC88Bcji4V7OCxCm_OmyPoLw/viewform

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, zero-day)