CVE-2021-20188

CVE Details

Release Date:2021-02-11

Description


A flaw was found in podman before 1.7.0. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

See more information about CVE-2021-20188 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7 Base Metrics: AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector: Local network Attack Complexity: High
Privileges Required: Low User Interaction: None
Scope: Unchanged Confidentiality Impact: High
Integrity Impact: High Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (buildah)ELSA-2021-07052021-03-05
Oracle Linux version 8 (buildah)ELSA-2021-07062021-03-05
Oracle Linux version 8 (cockpit-podman)ELSA-2021-07062021-03-05
Oracle Linux version 8 (conmon)ELSA-2021-07062021-03-05
Oracle Linux version 8 (container-selinux)ELSA-2021-07052021-03-05
Oracle Linux version 8 (container-selinux)ELSA-2021-07062021-03-05
Oracle Linux version 8 (containernetworking-plugins)ELSA-2021-07052021-03-05
Oracle Linux version 8 (containernetworking-plugins)ELSA-2021-07062021-03-05
Oracle Linux version 8 (criu)ELSA-2021-07052021-03-05
Oracle Linux version 8 (criu)ELSA-2021-07062021-03-05
Oracle Linux version 8 (fuse-overlayfs)ELSA-2021-07052021-03-05
Oracle Linux version 8 (fuse-overlayfs)ELSA-2021-07062021-03-05
Oracle Linux version 8 (oci-systemd-hook)ELSA-2021-07052021-03-05
Oracle Linux version 8 (oci-umount)ELSA-2021-07052021-03-05
Oracle Linux version 8 (podman)ELSA-2021-07052021-03-05
Oracle Linux version 8 (podman)ELSA-2021-07062021-03-05
Oracle Linux version 8 (python-podman-api)ELSA-2021-07062021-03-05
Oracle Linux version 8 (runc)ELSA-2021-07052021-03-05
Oracle Linux version 8 (runc)ELSA-2021-07062021-03-05
Oracle Linux version 8 (skopeo)ELSA-2021-07052021-03-05
Oracle Linux version 8 (skopeo)ELSA-2021-07062021-03-05
Oracle Linux version 8 (slirp4netns)ELSA-2021-07052021-03-05
Oracle Linux version 8 (slirp4netns)ELSA-2021-07062021-03-05
Oracle Linux version 8 (udica)ELSA-2021-07062021-03-05



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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