macOS Big Sur 11.2.1 Fixes Root Access Sudo Bug
The macOS Big Sur 11.2.1 update that Apple released today fixes a sudo security vulnerability that could allow an attacker to gain root access to a Mac.
According to an Apple security support document, the bug, CVE-2021-3156, was addressed in the update by updating to sudo version 1.9.5p2. Apple has also fixed the bug in Supplemental Updates made available for macOS Catalina 10.15.7 and macOS Mojave 10.14.6.
The updates also include fixes for two bugs that could allow an app to execute arbitrary code with kernel privileges.
Discovered last week, the vulnerability triggers a "heap overflow" in sudo that changes the current user's privileges to enable root-level access, giving an attacker access to the entire system.
Popular Stories
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another eight months, there are already plenty of rumors about the devices.
Below, we have recapped 12 features rumored for the iPhone 18 Pro models, as of January 2026:
The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras
Under-screen Face ID...
Apple plans to upgrade the iPad mini, MacBook Pro, iPad Air, iMac, and MacBook Air with OLED displays between 2026 and 2028, according to DigiTimes.
Bloomberg's Mark Gurman previously reported that the iPad mini and MacBook Pro will receive an OLED display as early as this year, but he does not expect the MacBook Air to adopt the technology until 2028 at the earliest.
A new iPad Air is...
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store.
The charts below provide an overview of Apple's current and previous trade-in values in the United States, according to the company's website. Most of the values declined slightly, but some of the Mac values increased.
iPhone
...
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps.
The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future.
To set up the...
iOS 27 is still many months away, but there are already plenty of rumors about new features that will be included in the software update.
The first beta of iOS 27 will be released during WWDC 2026 in June, and the update should be released to all users with a compatible iPhone in September.
Bloomberg's Mark Gurman said that iOS 27 will be similar to Mac OS X Snow Leopard, in the sense...
