Apple Releases OS X Bash Update to Fix 'Shellshock' Security Flaw in Mavericks, Mountain Lion, and Lion

Apple today released OS X bash update 1.0 for OS X Mavericks to fix a vulnerability in the bash UNIX shell.

The security flaw, known in the media as "Shellshock," was discovered last week. Uncovered by security researchers, the exploit in the bash command shell in OS X and Linux could be used to deploy malicious code.

bashupdate
According to an Apple spokesperson, most OS X users were not at risk form the bash vulnerabilities, but the company promised to work quickly to provide an update.

Bash, a UNIX command shell and language included in OS X, has a weakness that could allow unauthorized users to remotely gain control of vulnerable systems. With OS X, systems are safe by default and not exposed to remote exploits of bash unless users configure advanced UNIX services. We are working to quickly provide a software update for our advanced UNIX users.

Along with the fix for OS X Mavericks, Apple has released updates for both OS X Lion and OS X Mountain Lion. There is no Yosemite download available as of yet, but Apple may be planning to issue a fix in the near future. The three updates are available via Apple's support pages and should be available via the Software Update tool soon.

Related Forum: OS X Mavericks

Top Rated Comments

andyyardley Avatar
120 months ago
Will this update break my wifi? Or delete all my files?
Score: 10 Votes (Like | Disagree)
chrisgeleven Avatar
120 months ago
Not seeing it in the App Store yet.
Score: 9 Votes (Like | Disagree)
gnasher729 Avatar
120 months ago
It's a very highly published and potently exploitable bug. You don't need to be running a server for it to be exploited.

It could, for example, be exploited by malware that you download. The bash patch should be applied by everyone.

That's like saying that the door of my house is not safe, because someone could climb through my windows and open it from inside.

If you were stupid enough to have downloaded malware, that malware doesn't need to exploit any bugs in bash. It can just use bash.
Score: 8 Votes (Like | Disagree)
sconnor99 Avatar
120 months ago
Careful guys. This update disables your MacBook's keyboard.


!!@£!@$@%£^£&**(!!
Score: 8 Votes (Like | Disagree)
Xenomorph Avatar
120 months ago
Before:


$ bash --version
GNU bash, version 3.2.51(1)-release (x86_64-apple-darwin13)


After:


$ bash --version
GNU bash, version 3.2.53(1)-release (x86_64-apple-darwin13)
Score: 8 Votes (Like | Disagree)
jayducharme Avatar
120 months ago
sucks for yosemite users.

I wonder if Yosemite is already fixed.

Hopefully, this update won't delete documents and kill your modem...
Score: 8 Votes (Like | Disagree)

Popular Stories

ios stolen device protection

iOS 17.3 Beta Adds New Stolen Device Protection Feature to iPhone

Tuesday December 12, 2023 10:20 am PST by
The first iOS 17.3 beta rolling out to developers today includes a new "Stolen Device Protection" feature that is designed to add an additional layer of security in the event someone has stolen your iPhone and also obtained the device's passcode. Earlier this year, The Wall Street Journal's Joanna Stern and Nicole Nguyen reported about instances of thieves spying on a victim's iPhone...
iOS 17

33 New Things Your iPhone Can Do in iOS 17.2

Tuesday December 12, 2023 1:57 am PST by
Apple has made available for download its major end-of-year iPhone software update, iOS 17.2, featuring a large number of features and changes that users have been anticipating for quite a while. Below, we've listed 33 new things that your iPhone can do once you've installed the update. Check Settings ➝ General ➝ Software Update on your device to get downloading. 1. Help You Keep a Daily ...
iPhone 16 Mock Back 1

iPhone 16 Early Prototypes: What Apple's Next-Generation iPhone Will Look Like

Tuesday December 12, 2023 3:07 pm PST by
With the launch of the iPhone 15, Apple introduced design changes like a curved frame and a frosted glass back. Information acquired by MacRumors suggests that Apple's next-generation iPhone 16 will build on these updates with modifications to the buttons and the camera layout. We have details on early pre-production designs for the iPhone 16, including a look at the variants and hardware...
CarPlay Phone Call

GM Says It's Nixing CarPlay to Make Drivers Safer

Tuesday December 12, 2023 1:47 pm PST by
Earlier this year, General Motors (GM) announced plans to phase out Apple's CarPlay and Android Auto in its future electric vehicles, with the company instead relying on an infotainment system co-developed with Google. This has not been a popular decision with iPhone users, and today, GM provided some additional insight into the decision in a discussion with MotorTrend. According to Tim...
iPhone 16 Side Feature

iPhone 16 Pro Rumored to Have These 12 New Features

Monday December 11, 2023 10:46 am PST by
While the iPhone 16 Pro and iPhone 16 Pro Max are still over nine months away from launching, there are already several rumors about the devices. Below, we have recapped new features and changes expected for the devices so far. These are some of the key changes rumored for the iPhone 16 Pro models as of December 2023:Larger displays: The iPhone 16 Pro and iPhone 16 Pro Max will be equipped...
Apple TV 2022 Feature Blue

Apple Releases tvOS 17.2 With Revamped Apple TV App

Monday December 11, 2023 9:58 am PST by
Apple today released tvOS 17.2, the second major update to the tvOS 17 operating system that came out in September 2023. tvOS 17.2 comes more than a month after tvOS 17.1, an update that expanded the availability of the Enhanced Dialogue feature. tvOS 17.2 can be downloaded using the Settings app on the ‌Apple TV‌. Go to System > Software Update to get the new software. ‌Apple TV‌...
maxresdefault

Top Five Features in macOS Sonoma 14.2

Wednesday December 13, 2023 3:21 pm PST by
When Apple releases new software, iOS updates tend to get most of the attention, and there are sometimes useful new features in Mac updates that go under the radar. That's the case with macOS Sonoma 14.2. It doesn't have flashy features like the Journal app that came in iOS 17.2, but there are a number of useful improvements that make it worth installing. Subscribe to the MacRumors YouTube ...