What’s Vulnerable › Vulnerabilities

CVE-2022-0358

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-29 · updated 2026-06-17
• Weakness: CWE-273

Description

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.

Affected products

• QEMU: before 6.2.0-7 — fixed in 6.2.0-7
• Red Hat Enterprise Linux: 8.0

How to fix

Upgrade to a fixed version: QEMU 6.2.0-7. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/CVE-2022-0358
• https://bugzilla.redhat.com/show_bug.cgi?id=2044863
• https://gitlab.com/qemu-project/qemu/-/commit/449e8171f96a6a944d1f3b7d3627ae059eae21ca
• https://security.netapp.com/advisory/ntap-20221007-0008/
• https://access.redhat.com/security/cve/CVE-2022-0358
• https://bugzilla.redhat.com/show_bug.cgi?id=2044863
• https://gitlab.com/qemu-project/qemu/-/commit/449e8171f96a6a944d1f3b7d3627ae059eae21ca
• https://security.netapp.com/advisory/ntap-20221007-0008/

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