Apple released new software upgrades for its products, including iPhones and iPads, addressing security problems and a battery depletion concern.
Both iOS 15.4.1 and iPadOS 15.41.1 fix a security flaw that affects iPhones and iPads. Apple describes the vulnerability saying that an application may be able to execute arbitrary code with kernel privileges and is found in AppleAVD, Apple’s audio and video decoding framework.
With better bounds checking, the update resolved an out-of-bounds write problem.
iPhone 6s and after, iPad Pro (all models), iPad Air 2 and later, iPad 5th Gen. and later, iPad mini 4 and later, and iPod touch (7th Gen.) are among the devices impacted.
The Monterey update fixes the same problems
The update to macOS Monterey (12.3.1) corrected two problems. The first is the same problem that AppleAVD caused in iOS and iPadOS, where an application might run arbitrary code with kernel privileges. The fix addressed the issue of bounds checking to remedy an out-of-bounds write problem.
The Intel Graphic Driver was the source of the second bug corrected in the macOS update.
In this instance, a program could be able to read kernel memory. Improved input validation was used to solve an out-of-bounds read problem that might have led to the kernel memory exposure.
All devices got updates
The update also resolves an issue reported in the release notes as the battery depletes more rapidly than planned after updating to iOS 15.4.
Other bug fixes include a problem with Braille devices being unresponsive while scrolling text or showing an alert and a problem with Made for iPhone hearing devices losing connectivity with some third-party apps.
Apple has also issued security and bug fixes for its other devices, including watchOS 8.5.1, tvOS 15.4.1, and HomePod 15.4.1.
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