CVE-2020-8631
Published: 5 February 2020
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.
Notes
| Author | Note |
|---|---|
| ccdm94 | This CVE has been patched in Xenial ESM. The patch, however, has been added only to the updates pocket, and since cloud-init is only used during first boot (pulling from updates), there should not be a need to add this to the security pocket. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
cloud-init Launchpad, Ubuntu, Debian |
bionic |
Released
(20.2-45-g5f7825e2-0ubuntu1~18.04.1)
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Not vulnerable
(20.1-10-g71af48df-0ubuntu5)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
(21.1-19-gbad84ad4-0ubuntu2)
|
|
| impish |
Not vulnerable
(21.3-1-g6803368d-0ubuntu3)
|
|
| jammy |
Not vulnerable
(21.4-25-g039c40f9-0ubuntu1~22.04.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(20.1)
|
|
| xenial |
Ignored
(patched version in updates pocket)
|
|
|
Patches: upstream: https://github.com/canonical/cloud-init/blob/3e2f7356effc9e9cccc5ae945846279804eedc46 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |