That's what I did, before Apple even released a patch for Mavericks.
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rutina:~/git/bashcheck@master$ uname -a
Darwin rutina.local 14.0.0 Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64 x86_64
rutina:~/git/bashcheck@master$ ./bashcheck
Testing /bin/bash ...
Bash version 3.2.53(1)-release
Variable function parser pre/suffixed [__BASH_FUNC<..>(), apple], bugs not exploitable
Not vulnerable to CVE-2014-6271 (original shellshock)
Not vulnerable to CVE-2014-7169 (taviso bug)
Found non-exploitable CVE-2014-7186 (redir_stack bug)
Test for CVE-2014-7187 not reliable without address sanitizer
Found non-exploitable CVE-2014-6277 (lcamtuf bug #1)
Not vulnerable to CVE-2014-6278 (lcamtuf bug #2)