Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2017-7471

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.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.0, indicating it requires adjacent network access with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 1 product from qemu organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-07-09T14:29:00.210

Last Modified

2024-11-21T03:31:58.140

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.0 (CRITICAL)

CVSSv2 Vector

AV:A/AC:L/Au:S/C:C/I:C/A:C

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

5.1

Impact Score

10.0

Weaknesses

Type: Primary
CWE-732

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 2.8.1.1	Yes
Application	qemu	qemu	2.9.0	Yes
Application	qemu	qemu	2.9.0	Yes
Application	qemu	qemu	2.9.0	Yes
Application	qemu	qemu	2.9.0	Yes
Application	qemu	qemu	2.9.0	Yes

References

http://www.openwall.com/lists/oss-security/2017/04/19/2 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/97970 Third Party Advisory, VDB Entry ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e ([email protected])
https://security.gentoo.org/glsa/201706-03 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2017/04/19/2 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/97970 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201706-03 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For qemu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.