Red Hat OpenShift Container Platform 4.13 update for cri-o

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU85580

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6476

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to unchecked access to an experimental annotation. A remote user can use the cgroupv2 and perform a denial of service (DoS) attack by consuming all available memory resources.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.13.0 - 4.13.28

containernetworking-plugins (Red Hat package): before 1.4.0-1.rhaos4.13.el8

openshift (Red Hat package): before 4.13.0-202401041732.p0.g9ed7eae.assembly.stream.el9

cri-o (Red Hat package): before 1.26.4-6.1.rhaos4.13.git9eb9cf3.el9

kernel-rt (Red Hat package): before 5.14.0-284.48.1.rt14.333.el9_2

kernel (Red Hat package): before 5.14.0-284.48.1.el9_2

External links

http://access.redhat.com/errata/RHSA-2024:0195

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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