Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-7471

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/07/2018
Last modified:
12/02/2023

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.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.00 CRITICAL
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.00
Severity 3.x
CRITICAL
Vector 2.0
AV:A/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.70 HIGH
Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.70
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* 2.8.1.1 (including)
cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:*
cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools