A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
https://security.netapp.com/advisory/ntap-20210312-0002/
https://security.gentoo.org/glsa/202208-27
https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c
https://bugzilla.redhat.com/show_bug.cgi?id=1915823
https://www.openwall.com/lists/oss-security/2021/01/22/1
https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html
Source: Mitre, NVD
Published: 2021-01-28
Updated: 2023-02-12
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 8.2
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Severity: High
EPSS: 0.00026