Apple releases security update for mDNSResponder (for Devices not running the latest OS version)

Mac Daily News ^ | June 21, 2016

[Swordmaker]

Current versions of Apple products use the updated version of Bonjour. For previous versions, Apple has issued a security update.

Apple has issued a security update for mDNSResponder, the low-level open source software that implements Bonjour in Apple and third-party products.
Which Apple platforms are affected?

OS X:

•  Versions prior to OS X El Capitan v10.11.1
  
•  Versions prior to OS X Yosemite v10.10.5 with Security Update 2015-004 Yosemite
  
•  Versions prior to OS X Mavericks v10.9.5 with Security Update 2015-007 Mavericks
  
•  iOS versions prior to iOS 9.1
  
•  watchOS versions prior to watchOS 2.1
  
•  AirPort Base Station Firmware versions prior to 7.7.7 and 7.6.7

Apple has coordinated with many third-party vendors to make sure that they are aware of the availability of this update. For non-Apple products, Apple suggests that you reach out to your vendor to determine if a product you use is affected and whether the vendor has already updated their product.

MacDailyNews Note: Check Software Update if you’re running an affected Apple platform.

[Swordmaker]

Apple releases security update for mDNSResponder for non-up-to-date devices. Check your software update to see if there is a security update for your device and install the latest if it's there. If you don't, the older DNS responder is susceptible to being hijacked by hackers pretending to be what they are not. — PING!

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[ImJustAnotherOkie]

I pasted this from another source.

http://arstechnica.com/apple/2015/01/why-dns-in-os-x-10-10-is-broken-and-what-you-can-do-to-fix-it/

Recently, there has been a lot of discussion about the current state of Apple’s software quality. Anyone with even a passing familiarity with development knows that bugs are par for the course, and most people aren’t bothered by small, day-to-day bugs that are fixed within a reasonable timeframe. Obviously, like everyone else, Apple’s software has its share of those.

But there’s another category of bug—glaring, perplexing bugs that couldn’t possibly have escaped the attention of the software engineers in question, let alone the quality assurance department. Such issues exist, and sometimes they go unfixed for months. Or years. Or ever. Hopefully, the set of network issues with OS X 10.10 described below won’t fall into this column, but they do raise an obvious question: why?