Описание
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.
A flaw was found in Kata Containers. An oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs.
Отчет
This flaw in the CopyFile policy of Kata Containers allows untrusted hosts to write to arbitrary locations within a guest workload image. This could lead to the overwriting of binaries inside the guest and the exfiltration of data from containers, including those running within Confidential Virtual Machines (CVMs).
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-cloud-api-adaptor-rhel9 | Not affected | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-monitor-rhel9 | Not affected | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-operator-bundle | Not affected | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-podvm-builder-rhel9 | Not affected | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-podvm-payload-rhel9 | Affected | ||
| Confidential Compute Attestation | openshift-sandboxed-containers/osc-rhel9-operator | Not affected | ||
| Red Hat OpenShift Container Platform 4 | cri-o | Not affected | ||
| Red Hat OpenShift Container Platform 4 | openshift4/ose-azure-file-csi-driver-rhel9 | Not affected | ||
| Red Hat OpenShift Container Platform 4 | rhcos | Affected | ||
| Red Hat OpenShift Container Platform 4.19 | rhcos-4.19.9.6.202606100451 | Fixed | RHSA-2026:25200 | 17.06.2026 |
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Дополнительная информация
Статус:
EPSS
8.8 High
CVSS3
Связанные уязвимости
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.
Kata Container has CopyFile Policy Subversion via Symlinks
EPSS
8.8 High
CVSS3