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An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.

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Kata Containers 安全漏洞

Kata Containers是Kata Containers社区的一款开源的轻量级虚拟机构建程序。 Kata Containers 1.11.5之前版本存在安全漏洞，该漏洞源于一个不适当的文件权限漏洞会影响Kata容器。当使用Kubernetes hostPath卷并将文件或目录作为只读挂载到容器中时，该文件目录在容器中挂载为只读，但在来宾中仍然是可写的。对于容器爆发情况，恶意客户可能会修改或删除预期为只读的文件目录。

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