Permissions, Privileges, and Access Controls in Podman - CVE-2020-1726

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Main Vulnerability Database Vulnerabilities #VU25983

Permissions, Privileges, and Access Controls in Podman - CVE-2020-1726

Published: March 11, 2020


Vulnerability identifier: #VU25983
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1726
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists 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.T


Affected software

Podman
podman (Alpine package)
Red Hat OpenShift Container Platform
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Opensuse

How to mitigate CVE-2020-1726

Install updates from vendor's website.

Podman - update to 1.8.1 rc4
podman (Alpine package) - update to 1.8.1-r0
Red Hat OpenShift Container Platform - update to 4.3.5

External References

Related Security Bulletins