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CVE-2018-1002100

Kubernetes arbitrary file overwrite

4.2 MediumFix available

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
High
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

1.67%Up 0.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 4.2

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
CVE-2018-1002100
CVSS 3.0
4.2 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-02
EUVDEUVD-2022-2004 4.2

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
EUVD-2022-2004
CVSS 3.0
4.2 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-2jq6-ffph-p4h8 5.5

Kubernetes arbitrary file overwrite

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
GHSA-2jq6-ffph-p4h8
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-20
Updated
2026-11-02
NVD 4.2

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
CVE-2018-1002100
CVSS 3.0
4.2 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
3.6 LowAV:L/AC:L/Au:N/C:N/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
OSV 5.5

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
CVE-2018-1002100
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2018-1002100 5.5

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
DEBIAN-CVE-2018-1002100
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
Show 5 moreShow less
OSVGHSA-2jq6-ffph-p4h8 5.5

Kubernetes arbitrary file overwrite

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
GHSA-2jq6-ffph-p4h8
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-20
Updated
2026-11-02
OSVRHBA-2018:1796 6.1

Red Hat Bug Fix Advisory: OpenShift Container Platform 3.9 bug fix and enhancement update

Record
RHBA-2018:1796
CVSS 3.0
6.1 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2018-1002100 4.2

In Kubernetes versions 1.5.x, 1.6.x, 1.7.x, 1.8.x, and prior to version 1.9.6, the kubectl cp command insecurely handles tar data returned from the container, and can be caused to overwrite arbitrary local files.

Record
UBUNTU-CVE-2018-1002100
CVSS 3.0
4.2 MediumCVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVGO-2023-1959 No score

Kubernetes arbitrary file overwrite in k8s.io/kubernetes

Kubernetes arbitrary file overwrite in k8s.io/kubernetes

Record
GO-2023-1959
Updated
2026-11-02
OSVopenSUSE-SU-2025:15424-1 No score

govulncheck-vulndb-0.0.20250807T150727-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250807T150727-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15424-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
k8s.io/kubernetes
Go
 1.5.0-alpha.0 up to 1.9.6
1.9.6
kubernetes
Debian:12
 before 1.17.4-1
1.17.4-1
kubernetes
Debian:13
 before 1.17.4-1
1.17.4-1
kubernetes
Debian:14
 before 1.17.4-1
1.17.4-1
k8s.io/kubernetes
Go
 1.5.0 up to 1.9.6
1.9.6
atomic-openshift
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-clients
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-clients-redistributable
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-cluster-capacity
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-docker-excluder
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
Show 27 moreShow less
Affected packages
PackageAffectedFixed
atomic-openshift-dockerregistry
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.349.8b7912c.el7
0:3.9.30-1.git.349.8b7912c.el7
atomic-openshift-excluder
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-federation-services
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-master
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-node
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-pod
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-sdn-ovs
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-service-catalog
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-template-service-broker
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-tests
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.0.dec1ba7.el7
0:3.9.30-1.git.0.dec1ba7.el7
atomic-openshift-utils
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.7.46f8678.el7
0:3.9.30-1.git.7.46f8678.el7
atomic-openshift-web-console
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.245.4a3aade.el7
0:3.9.30-1.git.245.4a3aade.el7
cri-o
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.9.12-1.gitfa11beb.el7
0:1.9.12-1.gitfa11beb.el7
cri-o-debuginfo
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.9.12-1.gitfa11beb.el7
0:1.9.12-1.gitfa11beb.el7
cri-tools
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.0.0-5.rhaos3.9.git8e6013a.el7
0:1.0.0-5.rhaos3.9.git8e6013a.el7
cri-tools-debuginfo
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.0.0-5.rhaos3.9.git8e6013a.el7
0:1.0.0-5.rhaos3.9.git8e6013a.el7
golang-github-prometheus-node_exporter
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.890.7ea5173.el7
0:3.9.30-1.git.890.7ea5173.el7
openshift-ansible
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.7.46f8678.el7
0:3.9.30-1.git.7.46f8678.el7
openshift-ansible-docs
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.7.46f8678.el7
0:3.9.30-1.git.7.46f8678.el7
openshift-ansible-playbooks
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.7.46f8678.el7
0:3.9.30-1.git.7.46f8678.el7
openshift-ansible-roles
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.7.46f8678.el7
0:3.9.30-1.git.7.46f8678.el7
prometheus-node-exporter
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:3.9.30-1.git.890.7ea5173.el7
0:3.9.30-1.git.890.7ea5173.el7
rubygem-fluent-plugin-elasticsearch
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.16.1-1.el7
0:1.16.1-1.el7
rubygem-fluent-plugin-elasticsearch-doc
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.16.1-1.el7
0:1.16.1-1.el7
rubygem-fluent-plugin-kubernetes_metadata_filter
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.0.3-1.el7
0:1.0.3-1.el7
rubygem-fluent-plugin-kubernetes_metadata_filter-doc
Red Hat:openshift:3.9::el7
From an advisory covering 2 CVEs
 before 0:1.0.3-1.el7
0:1.0.3-1.el7
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 44 CVEs
 before 0.0.20250807T150727-1.1
0.0.20250807T150727-1.1

History

History
RecordedChangedSources
affected, facts
affected
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-1002100 is a medium vulnerability (CVSS 4.2) in Kubernetes, published June 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.67%, the 76th percentile. Fixed in k8s.io/kubernetes 1.9.6.

References

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