Permissions, Privileges, and Access Controls in CRI-O - CVE-2023-6476

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Main Vulnerability Database Vulnerabilities #VU85580

Permissions, Privileges, and Access Controls in CRI-O - CVE-2023-6476

Published: January 18, 2024


Vulnerability identifier: #VU85580
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-6476
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

CRI-O
Red Hat OpenShift Container Platform
toolbox (Red Hat package)
rust-bootupd (Red Hat package)
coreos-installer (Red Hat package)
runc (Red Hat package)
containernetworking-plugins (Red Hat package)
skopeo (Red Hat package)
crun (Red Hat package)
cri-o (Red Hat package)
cri-tools (Red Hat package)
buildah (Red Hat package)
conmon (Red Hat package)
ignition (Red Hat package)
container-selinux (Red Hat package)
catch (Red Hat package)
podman (Red Hat package)
openshift (Red Hat package)
openshift-clients (Red Hat package)
ose-aws-ecr-image-credential-provider (Red Hat package)
openshift-ansible (Red Hat package)
rust-afterburn (Red Hat package)
kernel (Red Hat package)
kernel-rt (Red Hat package)
ostree (Red Hat package)
rpm-ostree (Red Hat package)

How to mitigate CVE-2023-6476

Install updates from vendor's website.

CRI-O - addressed in versions 1.27.3, 1.28.3, 1.29.1
Red Hat OpenShift Container Platform - addressed in versions 4.13.29, 4.14.9, 4.14.10, 4.15.0
toolbox (Red Hat package) - update to 0.1.2-1.rhaos4.15.el9
rust-bootupd (Red Hat package) - update to 0.2.17-1.el9
coreos-installer (Red Hat package) - update to 0.17.0-3.rhaos4.15.el9
runc (Red Hat package) - update to 1.1.12-1.rhaos4.15.el9
containernetworking-plugins (Red Hat package) - addressed in versions 1.4.0-1.rhaos4.13.el8, 1.4.0-1.rhaos4.14.el8
skopeo (Red Hat package) - update to 1.11.2-21.1.rhaos4.15.el9
crun (Red Hat package) - update to 1.14-1.rhaos4.15.el9
cri-o (Red Hat package) - addressed in versions 1.26.4-6.1.rhaos4.13.git9eb9cf3.el8, 1.26.4-6.1.rhaos4.13.git9eb9cf3.el9, 1.27.2-7.rhaos4.14.git1cc7a64.el8, 1.27.2-7.rhaos4.14.git1cc7a64.el9, 1.28.3-14.rhaos4.15.git33aabd8.el9
cri-tools (Red Hat package) - update to 1.28.0-3.el9
buildah (Red Hat package) - update to 1.29.1-20.2.rhaos4.15.el9
conmon (Red Hat package) - update to 2.1.7-1.2.rhaos4.14.el9
ignition (Red Hat package) - update to 2.16.2-2.rhaos4.15.el9
container-selinux (Red Hat package) - update to 2.228.1-1.rhaos4.15.el9
catch (Red Hat package) - update to 3.5.1-1.el9
podman (Red Hat package) - update to 4.4.1-21.rhaos4.15.el9
openshift (Red Hat package) - addressed in versions 4.13.0-202401041732.p0.g9ed7eae.assembly.stream.el8, 4.13.0-202401041732.p0.g9ed7eae.assembly.stream.el9, 4.14.0-202401041534.p0.g5c56cc3.assembly.stream.el8, 4.14.0-202401041534.p0.g5c56cc3.assembly.stream.el9, 4.15.0-202402142009.p0.g6216ea1.assembly.stream.el9
openshift-clients (Red Hat package) - addressed in versions 4.14.0-202401040833.p0.g286cfa5.assembly.stream.el8, 4.14.0-202401040833.p0.g286cfa5.assembly.stream.el9, 4.15.0-202402070507.p0.g48dcf59.assembly.stream.el9
ose-aws-ecr-image-credential-provider (Red Hat package) - update to 4.15.0-202401231232.p0.gba252ab.assembly.stream.el9
openshift-ansible (Red Hat package) - update to 4.15.0-202402162207.p0.g1c9b99e.assembly.stream.el9
rust-afterburn (Red Hat package) - update to 5.4.3-2.rhaos4.15.el9
kernel (Red Hat package) - addressed in versions 5.14.0-284.48.1.el9_2, 5.14.0-284.54.1.el9_2
kernel-rt (Red Hat package) - addressed in versions 5.14.0-284.48.1.rt14.333.el9_2, 5.14.0-284.54.1.rt14.339.el9_2
ostree (Red Hat package) - update to 2023.8-3.el9
rpm-ostree (Red Hat package) - update to 2024.2-1.el9

External References

Related Security Bulletins