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Fencer Vulns
high 8.8

CVE-2017-1002101 in the critical feed json

In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with…

published 2018-03-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-1645

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
13.3%
EPSS 13.3% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.

Patch / fix

  • Kubernetes Kubernetes v1.7.14, v1.8.9, v1.9.4
  • kubernetes Debian 14, Debian 13, Debian 12 1.7.16+dfsg-1

debian advisories DEBIAN-CVE-2017-1002101

  • atomic-openshift openshift 3.3 3.3.1.46.11-1.git.4.e236015.el7
  • atomic-openshift openshift 3.4 3.4.1.44.38-1.git.4.bb8df08.el7
  • atomic-openshift openshift 3.5 3.5.5.31.48-1.git.4.ff6153e.el7
  • atomic-openshift openshift 3.6 3.6.173.0.96-1.git.4.e6301f8.el7
  • atomic-openshift openshift 3.7 3.7.23-1.git.5.83efd71.el7
  • atomic-openshift-pod openshift 3.3 3.3.1.46.11-1.git.4.e236015.el7
  • atomic-openshift-pod openshift 3.4 3.4.1.44.38-1.git.4.bb8df08.el7
  • atomic-openshift-pod openshift 3.5 3.5.5.31.48-1.git.4.ff6153e.el7

red hat advisories RHSA-2018:0475

  • kubernetes openSUSE Leap 15.1 1.18.0-lp151.5.1
  • cri-o openSUSE Leap 15.1 1.17.1-lp151.2.2
  • go1.14 openSUSE Leap 15.1 1.14-lp151.6.1
  • cri-tools openSUSE Leap 15.1 1.18.0-lp151.2.1

opensuse advisories openSUSE-SU-2020:0554-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-1002101 updated cvss 7.5

kubernetes: Volume security can be sidestepped with innocent emptyDir and subpath

  • Red Hat Enterprise Linux 7 kubernetes
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 3.3 atomic-openshift 3.3.1.46.11-1.git.4.e236015.el7, atomic-openshift-pod 3.3.1.46.11-1.git.4.e236015.el7, atomic-openshift-node 3.3.1.46.11-1.git.4.e236015.el7, atomic-openshift-tests 3.3.1.46.11-1.git.4.e236015.el7, atomic-openshift-master 3.3.1.46.11-1.git.4.e236015.el7, atomic-openshift-clients 3.3.1.46.11-1.git.4.e236015.el7, +6 more Red Hat OpenShift Container Platform 3.4 atomic-openshift 3.4.1.44.38-1.git.4.bb8df08.el7, atomic-openshift-pod 3.4.1.44.38-1.git.4.bb8df08.el7, atomic-openshift-node 3.4.1.44.38-1.git.4.bb8df08.el7, atomic-openshift-tests 3.4.1.44.38-1.git.4.bb8df08.el7, atomic-openshift-master 3.4.1.44.38-1.git.4.bb8df08.el7, atomic-openshift-clients 3.4.1.44.38-1.git.4.bb8df08.el7, +6 more Red Hat OpenShift Container Platform 3.5 atomic-openshift 3.5.5.31.48-1.git.4.ff6153e.el7, atomic-openshift-pod 3.5.5.31.48-1.git.4.ff6153e.el7, atomic-openshift-node 3.5.5.31.48-1.git.4.ff6153e.el7, atomic-openshift-tests 3.5.5.31.48-1.git.4.ff6153e.el7, atomic-openshift-master 3.5.5.31.48-1.git.4.ff6153e.el7, atomic-openshift-clients 3.5.5.31.48-1.git.4.ff6153e.el7, +6 more Red Hat OpenShift Container Platform 3.6 atomic-openshift 3.6.173.0.96-1.git.4.e6301f8.el7, atomic-openshift-pod 3.6.173.0.96-1.git.4.e6301f8.el7, atomic-openshift-node 3.6.173.0.96-1.git.4.e6301f8.el7, atomic-openshift-tests 3.6.173.0.96-1.git.4.e6301f8.el7, atomic-openshift-master 3.6.173.0.96-1.git.4.e6301f8.el7, atomic-openshift-clients 3.6.173.0.96-1.git.4.e6301f8.el7, +9 more Red Hat OpenShift Container Platform 3.7 atomic-openshift 3.7.23-1.git.5.83efd71.el7, atomic-openshift-pod 3.7.23-1.git.5.83efd71.el7, atomic-openshift-node 3.7.23-1.git.5.83efd71.el7, atomic-openshift-tests 3.7.23-1.git.5.83efd71.el7, atomic-openshift-master 3.7.23-1.git.5.83efd71.el7, atomic-openshift-clients 3.7.23-1.git.5.83efd71.el7, +10 more
    fixed: vendor fix RHSA-2018:0475
  • Red Hat Storage 3 heketi, heketi-client, python-heketi
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

13.27% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/bgeesaman/subpath-exploit/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 3.0 9.6 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
NVD 2.0 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N

Affected products

  • Kubernetes Kubernetes

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.