Security restrictions bypass in Red Hat OpenShift Container Platform

Published: 2021-05-30
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-30465
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Red Hat OpenShift Container Platform
Client/Desktop applications / Software for system administration

openshift (Red Hat package)
Operating systems & Components / Operating system package or component

runc (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU53399

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30465

CWE-ID: CWE-254 - Security Features

Exploit availability: No


The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the security features bypass issue. A remote authenticated attacker on the local network can perform a symlink exchange attack and host filesystem being bind-mounted into the container.


Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.6.0, 4.6.1, 4.6.2, 4.6.3, 4.6.4, 4.6.5, 4.6.6, 4.6.7, 4.6.8, 4.6.9, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.15, 4.6.16, 4.6.17, 4.6.18, 4.6.19, 4.6.20, 4.6.21, 4.6.22, 4.6.23, 4.6.25, 4.6.26, 4.6.27, 4.6.28, 4.6.29

openshift (Red Hat package): 4.6.0-202012051246.p0.git.94231.efc9027.el7, 4.6.0-202012051246.p0.git.94231.efc9027.el8, 4.6.0-202012190744.p0.git.94235.c62c6f7.el7, 4.6.0-202012190744.p0.git.94235.c62c6f7.el8, 4.6.0-202101160934.p0.git.94242.fc5242e.el7, 4.6.0-202101160934.p0.git.94242.fc5242e.el8, 4.6.0-202102050212.p0.git.94265.716fcf8.el7, 4.6.0-202102050212.p0.git.94265.716fcf8.el8, 4.6.0-202103210832.p0.git.94284.834ccc7.el7, 4.6.0-202103210832.p0.git.94284.834ccc7.el8

runc (Red Hat package): 1.0.0-1.rc2.el7,,, 1.0.0-61.rc8.rhaos4.2.git3cbe540.el8, 1.0.0-62.rc8.rhaos4.1.git3cbe540.el8, 1.0.0-63.rc8.el8, 1.0.0-63.rc8.rhaos4.1.git3cbe540.el8_0, 1.0.0-63.rc10.rhaos4.2.gitdc9208a.el8, 1.0.0-65.rc10.rhaos4.3.el8, 1.0.0-66.rc8.el7_7, 1.0.0-66.rc10.rhaos4.3.el7_8, 1.0.0-67.rc10.el7_8, 1.0.0-72.rhaos4.5.giteadfc6b.el8, 1.0.0-82.rhaos4.6.git086e841.el7, 1.0.0-82.rhaos4.6.git086e841.el8

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.