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Oracle Linux: CVE-2020-8631: ELSA-2020-3898: cloud-init security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2020-8631: ELSA-2020-3898: cloud-init security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:H/Au:N/C:C/I:C/A:C)
Published
02/05/2020
Created
10/09/2020
Added
10/07/2020
Modified
07/22/2024

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. A flaw was found in cloud-init, where it uses the random.choice function when creating sensitive random strings used for generating a random password in new instances. Depending on the instance configuration, a remote or local attacker may abuse this vulnerability to guess the password of the victim user.

Solution(s)

  • oracle-linux-upgrade-cloud-init

References

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