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Friday, 24 September 2021 10:00

Apple patches yet another zero-day in its operating systems Featured

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Apple patches yet another zero-day in its operating systems Image by Clker-Free-Vector-Images from Pixabay

Apple has issued a patch for a vulnerability in the kernel of its iOS and macOS operating systems, originally a zero-day, warning that it affected devices running iOS 13, and also the macOS Catalina platform.

As usual, the company provided sparse details about the flaw, though it said it was aware of the issue being exploited in the wild.

The issue was described as a type confusion issue in XNU. iOS 13 ow now officially not supported by Apple.

The lack of detail was explained in this sentence: "For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available."

And of the vulnerability, the boffins in Cupertino said: "A malicious application may be able to execute arbitrary code with kernel privileges."

Google researchers Erye Hernandez, Clément Lecigne and Ian Beer were credited with finding the flaw.

This flaw took to 16 the number of zero-day flaws that have been reported in Apple's products this year.

Google will release details of the flaw after 30 days, as per its official policy.

Contacted for comment, Satnam Narang, staff research engineer at security outfit Tenable, said: "The latest zero-day flaw, identified as CVE-2021-30869, was discovered by researchers at Google Threat Analysis Group and Google Project Zero.

"Details about the vulnerability will remain under wraps for at least 30 days by Google to allow for users to apply the newly available patches. However, it appears that CVE-2021-30869 was used as part of a vulnerability chain with a remote code execution flaw in WebKit.

"Zero-day vulnerabilities are valuable for any attacker, but they are often mostly used by advanced persistent threat (APT) actors that have a limited set of targets.

"While there are other more impactful vulnerabilities that users should prioritise, on a basic level, it is almost always a win to apply patches in a timely manner to ensure devices are protected."


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Sam Varghese

Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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