Firefox Susceptible To QuickTime Security Flaw, what about Second Life Client ?

Yesterday I saw the following on Slashdot.org :
Apple’s QuickTime media player software contains a previously undocumented security weakness in the way QuickTime handles the RTSP media-streaming protocol. The vulnerability is present in QuickTime versions 4.0 through 7.3 (the latest version) on both Windows and Mac systems. Symantec has tested the publicly available exploit code [...]