CVE-2017-7471 Information

Description

Quick Emulator (Qemu) built with the VirtFS host directory sharing via Plan 9 File System (9pfs) support is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.

CVSS Vector

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

Reference

http://www.openwall.com/lists/oss-security/2017/04/19/2 http://www.securityfocus.com/bid/97970 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 https://git.qemu.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e https://security.gentoo.org/glsa/201706-03

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.0