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Gentoo Linux: CVE-2022-0358: QEMU: Multiple Vulnerabilities

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Gentoo Linux: CVE-2022-0358: QEMU: Multiple Vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/14/2022
Created
08/29/2022
Added
08/16/2022
Modified
09/06/2022

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.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-qemu

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