The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace
Published Oct 26, 2018
3.3
LOWCVSS 3.0
EPSS 0.53%
Description
The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.
Affected products
- Vendor Canonical Ltd. Product Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10 Defaultn/a
- Version 4.15.0-38.41StatusaffectedConstraints-
- Version 4.18.0-10.11StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Canonical Ltd. | Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10 | n/a |
|
Configuration 1
- n/a
Configuration 2
- 16.04
- 18.04
- 18.10
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
AV:L/AC:L/Au:N/C:P/I:N/A:N
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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00532) | 42.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00532) | 40.48th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00085) | 22.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.11% (0.01109) | 29.18th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.11% (0.01109) | 0.00th | v1 |
References (9)
- http://www.securityfocus.com/bid/105752 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://launchpad.net/bugs/1793458 x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html x_refsource_CONFIRMThird Party Advisory
- https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html x_refsource_CONFIRMThird Party Advisory
- https://usn.ubuntu.com/3832-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3833-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3835-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3836-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3836-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105752 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://launchpad.net/bugs/1793458 | x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory | |
| https://lists.ubuntu.com/archives/kernel-team/2018-October/096172.html | x_refsource_CONFIRMThird Party Advisory | |
| https://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-6559.html | x_refsource_CONFIRMThird Party Advisory | |
| https://usn.ubuntu.com/3832-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3833-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3835-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3836-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3836-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory |
Change history (0)
No recorded changes yet.