CVE-2020-35517 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1915823 https://lists.gnu.org/archive/html/qemu-devel/2021-01/msg05461.html https://www.openwall.com/lists/oss-security/2021/01/22/1 https://github.com/qemu/qemu/commit/ebf101955ce8f8d72fba103b5151115a4335de2c https://security.netapp.com/advisory/ntap-20210312-0002/

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.2