Vulnerability · Published Feb 5, 2020 · Assigned by mitre
CVE-2020-8631
Medium 5.5
In plain English
A medium-severity security flaw in the cloud-init package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 62.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | cloud-init | 19.4-2 | DEBIAN-CVE-2020-8631 |
| Debian:13 | cloud-init | 19.4-2 | DEBIAN-CVE-2020-8631 |
| Debian:14 | cloud-init | 19.4-2 | DEBIAN-CVE-2020-8631 |
Affected products (as reported)
References
- https://github.com/canonical/cloud-init/pull/204 x_refsource_MISC
- https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1860795 x_refsource_MISC
- [debian-lts-announce] 20200221 [SECURITY] [DLA 2113-1] cloud-init security update mailing-list, x_refsource_MLIST
- openSUSE-SU-2020:0400 vendor-advisory, x_refsource_SUSE