iOS 4 Addresses Over 60 Security Vulnerabilities

Apple has posted a new support document outlining the security content of iOS 4, released earlier today. The document covers well over 60 security vulnerabilities addressed with the new release for the operating system behind Apple's mobile devices. Fifty of the security issues addressed involve WebKit, the engine behind Apple's mobile Safari browser included on all iOS devices, while a handful of other issues affect the specific Safari implementation of WebKit in iOS.
One issue addressed in iOS 4 involves the ability of third-party applications to access a user's photo library, indirectly allowing the applications to infer a user's location without explicit authorization via the geolocation information. iOS 4 addresses the issue by modifying the Application Sandbox to prevent direct access to the photo library.
Four of the fixed vulnerabilities affect the operating system's ImageIO framework and could have allowed maliciously crafted BMP, TIFF or JPEG images to lead to security breaches. iOS 4 also addresses a pair of flaws in the Passcode Lock system in which remote locking via MobileMe could result in the password already being entered at the next unlock or unauthorized pairing of a locked device to a computer could occur soon after initial booting following a shutdown in an unlocked state.
iOS 4 also addresses an issue with the Settings application in which a device connected to a hidden Wi-Fi network could incorrectly indicate that is connected to a different network. Finally, an assortment of other issues primarily involving overflow conditions that could lead to crashes or arbitrary code execution have also been fixed in CFNetwork, LibSystem, and libxml.
Popular Stories
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison.
The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device.
Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
Starting today, April 24, Apple Stores around the world are giving away a special pin for free to customers who request one, while supplies last.
Photo Credit: Filip Chudzinski
The enamel pin's design is inspired by the Global Close Your Rings Day award in the Activity app, which Apple Watch users can receive by closing all three Activity rings today. The limited-edition pin is the physical...
Apple's $570 million fine from the EU has triggered a sharp rebuke from the White House, which called the fine a form of economic extortion, Reuters reports.
The fine was announced on Wednesday by the European Commission, following a formal investigation into Apple's compliance with the bloc's Digital Markets Act (DMA), a landmark piece of legislation aimed at curbing the market dominance of ...
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
When an iPad running iPadOS 19 is connected to a Magic Keyboard, a macOS-like menu bar will appear on the screen, according to the leaker Majin Bu.
This change would further blur the lines between the iPad and the Mac. Bloomberg's Mark Gurman previously claimed that iPadOS 19 will be "more like macOS," with unspecified improvements to productivity, multitasking, and app window management,...
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too.
2025 Apple Watch Ultra 3
Apple didn't update the...