Use of Insufficiently Random Values Affecting cloud-init package, versions <0:19.3-4.amzn2
Threat Intelligence
EPSS
0.05% (16th
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-CLOUDINIT-1692347
- published 27 Sep 2021
- disclosed 5 Feb 2020
Introduced: 5 Feb 2020
CVE-2020-8631 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 cloud-init to version 0:19.3-4.amzn2 or higher.
This issue was patched in ALAS2-2021-1576.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cloud-init package and not the cloud-init package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
cloud-init through 19.4 relies on Mersenne Twister for a random password, which makes it easier for attackers to predict passwords, because rand_str in cloudinit/util.py calls the random.choice function.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8631
- https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1860795
- https://github.com/canonical/cloud-init/pull/204
- https://lists.debian.org/debian-lts-announce/2020/02/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00042.html
CVSS Scores
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