The basic effect is to move programs such as ssh to a different place in memory each time they start, making it more difficult for an attacker to exploit them. PIE is related to address space layout randomization. So, what caused this issue? This was due to a bug in Instant Hijack and is related to a new security feature in Leopard called position-independent executables (PIE). When you first run any of the aforementioned applications, you’ll be prompted to update your copy of Instant Hijack (provided you have an old version installed). Following the Security Update, ssh and some related programs would crash when they were run on Mac OS X 10.5 machines with Instant Hijack installed.įirst up, the fix – we’ve posted updates to Audio Hijack Pro (now at version 2.8.1), Airfoil (now at version 3.1.3), and Nicecast (now at version 1.9.2).Įach of these updates contains the updated Instant Hijack, version 2.0.3, which will resolve the issue. The Instant Hijack component is optionally installed by Airfoil, Audio Hijack Pro, and Nicecast, and enables these applications to grab audio from applications that are already running. Apple released Security Update 2008-002 yesterday and this led to a problem for some users on Mac OS X 10.5 using our Instant Hijack component.
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