Alma Linux: CVE-2022-0358: Moderate: virt:rhel and virt-devel:rhel security update (ALSA-2022-0886)
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)
- alma-upgrade-libiscsi
- alma-upgrade-libiscsi-devel
- alma-upgrade-libiscsi-utils
- alma-upgrade-libvirt-dbus
- alma-upgrade-netcf
- alma-upgrade-netcf-devel
- alma-upgrade-netcf-libs
- alma-upgrade-qemu-guest-agent
- alma-upgrade-qemu-img
- alma-upgrade-qemu-kvm
- alma-upgrade-qemu-kvm-block-curl
- alma-upgrade-qemu-kvm-block-gluster
- alma-upgrade-qemu-kvm-block-iscsi
- alma-upgrade-qemu-kvm-block-rbd
- alma-upgrade-qemu-kvm-block-ssh
- alma-upgrade-qemu-kvm-common
- alma-upgrade-qemu-kvm-core
- alma-upgrade-sgabios
- alma-upgrade-sgabios-bin
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