A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-29T00:00:00

Updated: 2024-08-02T23:25:40.534Z

Reserved: 2022-01-25T00:00:00

Link: CVE-2022-0358

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2022-08-29T15:15:09.310

Modified: 2022-12-09T18:00:15.610

Link: CVE-2022-0358

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-01-25T00:00:00Z

Links: CVE-2022-0358 - Bugzilla