The lxc-user-nic component of LXC allows unprivileged users to open arbitrary files
Published Aug 10, 2018
3.3
LOWCVSS 3.0
EPSS 0.33%
Description
lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn't otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.
Affected products
- Vendor n/a Product LXC Defaultn/a
- Version 2.0.9StatusaffectedConstraints<2.0*
- Version 3.0.0StatusaffectedConstraints<3.0*
- 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n/a | LXC | n/a |
|
Configuration 1
- 18.04
Configuration 2
- ≥ 2.0.0 · ≤ 2.0.9
- ≥ 3.0.0 · < 3.0.2
Configuration 3
- 1.0
- 2.0
- 6
- 11
- 11
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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.33% (0.00333) | 24.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00347) | 26.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00050) | 12.59th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00078) | 35.39th | v3 (v2023.03.01) |
| Aug 4, 2023 | 0.08% (0.00078) | 32.15th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00047) | 14.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.41% (0.04411) | 88.14th | v2 (v2022.01.01) |
| Jan 1, 2023 | 4.41% (0.04411) | 87.63th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.86% (0.01865) | 48.06th | v1 |
| Jan 6, 2022 | 1.86% (0.01865) | 47.54th | v1 |
| Sep 1, 2021 | 1.86% (0.01865) | 76.13th | v1 |
| Apr 14, 2021 | 1.86% (0.01865) | 0.00th | v1 |
References (8)
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html vendor-advisoryx_refsource_SUSE
- https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=988348 x_refsource_CONFIRMIssue TrackingPatch
- https://security.gentoo.org/glsa/201808-02 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://usn.ubuntu.com/usn/usn-3730-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00074.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00076.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00091.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html | vendor-advisoryx_refsource_SUSE | |
| https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://bugzilla.suse.com/show_bug.cgi?id=988348 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://security.gentoo.org/glsa/201808-02 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://usn.ubuntu.com/usn/usn-3730-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory |
Change history (0)
No recorded changes yet.