local snapd exploit through cloud-init
Published Jul 29, 2020
7.3
HIGHCVSS 3.1
EPSS 0.22%
Description
cloud-init as managed by snapd on Ubuntu Core 16 and Ubuntu Core 18 devices was run without restrictions on every boot, which a physical attacker could exploit by crafting cloud-init user-data/meta-data via external media to perform arbitrary changes on the device to bypass intended security mechanisms such as full disk encryption. This issue did not affect traditional Ubuntu systems. Fixed in snapd version 2.45.2, revision 8539 and core version 2.45.2, revision 9659.
Affected products
-
- Version 2.45.2StatusaffectedConstraints<2.45.2, revision 9659
- Version
-
- Version 2.45.2StatusaffectedConstraints<2.45.2, revision 8539
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- < 2.45.2
- 16.04
- 18.04
- 19.10
- 20.04
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.22% (0.00217) | 10.92th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.22% (0.00217) | 12.36th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.07% (0.00067) | 29.84th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.07% (0.00067) | 29.60th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.07% (0.00067) | 27.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.74% (0.02742) | 63.06th | v1 |
| Jan 6, 2022 | 2.74% (0.02742) | 62.72th | v1 |
| Jan 5, 2022 | 0.62% (0.00624) | 46.35th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://launchpad.net/bugs/1879530 x_refsource_CONFIRMThird Party Advisory
- https://ubuntu.com/USN-4424-1 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://launchpad.net/bugs/1879530 | x_refsource_CONFIRMThird Party Advisory | |
| https://ubuntu.com/USN-4424-1 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.