CVE-2017-7493

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2017-7493
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-05-17 15:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionQuick 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 virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-732 | Improper access control issue

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 8.0 All All All
Application Qemu Qemu All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA QEMU Qemu affected 2.7.4 Not specified

References

ReferenceSourceLinkTags
oss-sec: CVE-2017-7493 Qemu: 9pfs: guest privilege escalation in virtfs mapped-file mode af854a3a-2127-422b-91ae-364da2661108 seclists.org Mailing List, Patch, Third Party Advisory
QEMU 'hw/9pfs/9p-local.c' Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
[SECURITY] [DLA 1497-1] qemu security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
[Qemu-devel] [PULL] 9pfs: local: forbid client access to metadata (CVE-2 af854a3a-2127-422b-91ae-364da2661108 lists.gnu.org Mailing List, Patch, Third Party Advisory
QEMU: Multiple vulnerabilities (GLSA 201706-03) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
1451709 – (CVE-2017-7493) CVE-2017-7493 Qemu: 9pfs: guest privilege escalation in virtfs mapped-file mode af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710528 Gentoo Linux QEMU Multiple Vulnerabilities (GLSA 201706-03)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report