Apple fixes recently disclosed CVE-2023-23529 zero-day on older devices

Apple released updates to backport security patches that address actively exploited CVE-2023-23529 WebKit zero-day for older iPhones and iPads.

Apple released security updates to backport patches that address an actively exploited zero-day flaw (CVE-2023-23529) for older iPhones and iPads.

The CVE-2023-23529 flaw is a type confusion issue in WebKit that was addressed by the IT giant with improved checks. The flaw impacts iOS, iPadOS, and macOS.

Apple addressed the vulnerability in February and US CISA added the issue to its Known Exploited Vulnerabilities Catalog on February 14, 2023.

An attacker can trick the victim into visiting malicious web pages to trigger the vulnerability and cause OS crashes or potentially gain arbitrary code execution on vulnerable devices.

“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 published by Apple.

Now Apple released security updates to fix the issue in iOS 15.7.4 and iPadOS 15.7.4.

The vulnerability impacted iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation) devices.

In January, Apple backported the security updates for another zero-day vulnerability, tracked as CVE-2022-42856, to older iPhones and iPads.

To secure older devices against attacks exploiting the above issue, Apple released iOS 12.5.7. The patches are now available also for iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and iPod touch (6th generation).

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Pierluigi Paganini

(SecurityAffairs – hacking, Apple)

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.