cloud-init/cloud-init-19.4-utils-use-SystemRandom-when-generating-random-passwo.patch

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From 3e2f7356effc9e9cccc5ae945846279804eedc46 Mon Sep 17 00:00:00 2001
From: Dimitri John Ledkov <xnox@ubuntu.com>
Date: Tue, 18 Feb 2020 17:03:24 +0000
Subject: [PATCH] utils: use SystemRandom when generating random password.
(#204)
As noticed by Seth Arnold, non-deterministic SystemRandom should be
used when creating security sensitive random strings.
---
cloudinit/util.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/cloudinit/util.py b/cloudinit/util.py
index d99e82fa..c02b3d9a 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -397,9 +397,10 @@ def translate_bool(val, addons=None):
def rand_str(strlen=32, select_from=None):
+ r = random.SystemRandom()
if not select_from:
select_from = string.ascii_letters + string.digits
- return "".join([random.choice(select_from) for _x in range(0, strlen)])
+ return "".join([r.choice(select_from) for _x in range(0, strlen)])
def rand_dict_key(dictionary, postfix=None):
--
2.18.1