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$NetBSD: patch-CVE-2012-1150-Lib_os.py,v 1.1 2012/03/25 09:09:05 tron Exp $
Fix for CVE-2012-1150 taken from here:
http://hg.python.org/cpython/rev/6b7704fe1be1
--- Lib/os.py.orig 2010-01-31 16:47:55.000000000 +0000
+++ Lib/os.py 2012-03-25 09:51:50.000000000 +0100
@@ -742,22 +742,3 @@
_make_statvfs_result)
except NameError: # statvfs_result may not exist
pass
-
-if not _exists("urandom"):
- def urandom(n):
- """urandom(n) -> str
-
- Return a string of n random bytes suitable for cryptographic use.
-
- """
- try:
- _urandomfd = open("/dev/urandom", O_RDONLY)
- except (OSError, IOError):
- raise NotImplementedError("/dev/urandom (or equivalent) not found")
- try:
- bs = b""
- while n - len(bs) >= 1:
- bs += read(_urandomfd, n - len(bs))
- finally:
- close(_urandomfd)
- return bs
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