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Fencer Intel
medium 5.9

CVE-2020-1726 json

Podman has Files or Directories Accessible to External Parties

published 6y ago modified 4mo ago also GHSA-vmhj-p9hw-vgrf , GO-2023-1544 , EUVD-2022-5384

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

A flaw was discovered in Podman where it incorrectly allows containers when created to overwrite existing files in volumes, even if they are mounted as read-only. When a user runs a malicious container or a container based on a malicious image with an attached volume that is used for the first time, it is possible to trigger the flaw and overwrite files in the volume.This issue was introduced in version 1.6.0.

Patch / fix

  • go github.com/containers/podman 2.0.6
  • go github.com/containers/podman/v2 2.0.6
  • go github.com/containers/libpod/v2 2.0.6
  • libpod Debian 12 1.6.4+dfsg1-3

debian advisories DEBIAN-CVE-2020-1726

  • crit RHEL 8 3.12-9.module+el8.2.0+5029+3ac48e7d
  • criu RHEL 8 3.12-9.module+el8.2.0+5029+3ac48e7d
  • runc RHEL 8 1.0.0-65.rc10.module+el8.2.0+5762+aaee29fb
  • udica RHEL 8 0.2.1-2.module+el8.2.0+4896+8f613c81
  • conmon RHEL 8 2:2.0.6-1.module+el8.2.0+5182+3136e5d4
  • podman RHEL 8 1.6.4-10.module+el8.2.0+6063+e761893a
  • skopeo RHEL 8 1:0.1.40-10.module+el8.2.0+5955+6cd70ceb
  • buildah RHEL 8 1.11.6-7.module+el8.2.0+5856+b8046c6d

red hat advisories RHSA-2020:1650RHSA-2020:0680

  • podman SLE Module for Containers 15 SP2, SLE Module for Containers 15 SP1 2.0.6-4.25.1
  • conmon SLE Module for Containers 15 SP2, SLE Module for Containers 15 SP1 2.0.20-3.6.1
  • fuse-overlayfs SLE Module for Containers 15 SP2, SLE Module for Containers 15 SP1 1.1.2-3.9.1
  • libcontainers-common SLE Module for Basesystem 15 SP2, SLE Module for Basesystem 15 SP1 20200727-3.12.1

suse advisories SUSE-SU-2020:2731-1

  • podman openSUSE Tumbleweed 3.3.1-2.1
  • podman openSUSE Leap 15.2 2.0.6-lp152.4.3.1
  • conmon openSUSE Leap 15.2 2.0.20-lp152.4.3.1
  • fuse-overlayfs openSUSE Leap 15.2 1.1.2-lp152.2.3.1
  • libcontainers-common openSUSE Leap 15.2 20200727-lp152.2.3.1
  • podman openSUSE Leap 15.1 2.0.6-lp151.3.21.1
  • conmon openSUSE Leap 15.1 2.0.20-lp151.5.1
  • fuse-overlayfs openSUSE Leap 15.1 1.1.2-lp151.8.1

opensuse advisories openSUSE-SU-2024:11177-1openSUSE-SU-2020:1559-1openSUSE-SU-2020:1552-1

  • crit AlmaLinux 8 3.12-9.module_el8.3.0+2044+12421f43
  • crit AlmaLinux 8 3.12-9.module_el8.4.0+2496+12421f43
  • crit AlmaLinux 8 3.12-9.module_el8.5.0+119+9a9ec082
  • criu AlmaLinux 8 3.12-9.module_el8.4.0+2496+12421f43
  • criu AlmaLinux 8 3.12-9.module_el8.3.0+2044+12421f43
  • criu AlmaLinux 8 3.12-9.module_el8.5.0+119+9a9ec082
  • udica AlmaLinux 8 0.2.1-2.module_el8.5.0+108+00865455
  • udica AlmaLinux 8 0.2.1-2.module_el8.5.0+2635+e4386a39

almalinux advisories ALSA-2020:1650

  • criu Rocky Linux 8 3.12-9.module+el8.5.0+681+c9a1951f
  • criu Rocky Linux 8 3.12-9.module+el8.4.0+557+48ba8b2f
  • runc Rocky Linux 8 1.0.0-65.rc10.module+el8.4.0+559+c02fa3b2
  • udica Rocky Linux 8 0.2.1-2.module+el8.5.0+770+e2f49861
  • udica Rocky Linux 8 0.2.1-2.module+el8.4.0+559+c02fa3b2
  • udica Rocky Linux 8 0.2.1-2.module+el8.5.0+708+6758137d
  • toolbox Rocky Linux 8 0.0.7-1.module+el8.5.0+770+e2f49861
  • toolbox Rocky Linux 8 0.0.7-1.module+el8.4.0+559+c02fa3b2

rocky linux advisories RLSA-2020:1650

  • podman Alpine 3.24, Alpine 3.23, Alpine 3.22 +8 more 1.8.1-r0

alpine advisories ALPINE-CVE-2020-1726

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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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-2020-1726 updated cvss 5.9

podman: incorrectly allows existing files in volumes to be overwritten by a container when it is created

  • Red Hat Enterprise Linux AppStream (v. 8) crit 3.12-9.module+el8.2.0+5029+3ac48e7d, criu 3.12-9.module+el8.2.0+5029+3ac48e7d, udica 0.2.1-2.module+el8.2.0+4896+8f613c81, conmon 2.0.6-1.module+el8.2.0+5182+3136e5d4, podman 1.6.4-10.module+el8.2.0+6063+e761893a, toolbox 0.0.7-1.module+el8.2.0+6096+9c3f08f3, +16 more
    fixed: vendor fix RHSA-2020:1650
  • Red Hat OpenShift Container Platform 4.3 podman 1.6.4-7.el8, podman-tests 1.6.4-7.el8, podman-docker 1.6.4-7.el8, podman-remote 1.6.4-7.el8, podman-manpages 1.6.4-7.el8
    fixed: vendor fix RHSA-2020:0680
  • Red Hat OpenShift Container Platform 4.4 openshift4/ose-cli v4.4.0-202004261927, openshift4/ose-pod v4.4.0-202004261927, openshift4/ose-etcd v4.4.0-202004261927, openshift4/ose-tests v4.4.0-202004261927, openshift4/ose-console v4.4.0-202004261927, openshift4/ose-coredns v4.4.0-202004261927, +76 more
    fixed: vendor fix RHBA-2020:0581
  • Red Hat Enterprise Linux 7 podman Red Hat Enterprise Linux 8 podman, podman-tests, podman-docker, podman-remote, podman-gvproxy, podman-plugins, +2 more Red Hat OpenShift Container Platform 3.11 podman
    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

1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
go github.com/containers/podman
>=1.6.0, <2.0.6
2.0.6
go github.com/containers/podman/v2
<2.0.6
2.0.6
go github.com/containers/libpod
>=1.6.0
 no fix listed
go github.com/containers/libpod/v2
<2.0.6
2.0.6

Affected products

  • The podman

Classification

Weakness
  • CWE-552 Files or Directories Accessible to External Parties

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.