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Fencer Intel
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 8y ago modified 4mo 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

Is CVE-2017-1002101 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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, 2026-11-09).

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 Intel 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.