CVE-2017-7493

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 virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest.

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://seclists.org/oss-sec/2017/q2/278	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/98574	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1451709	Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html	Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html	Mailing List Patch Third Party Advisory
https://security.gentoo.org/glsa/201706-03	Third Party Advisory
http://seclists.org/oss-sec/2017/q2/278	Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/98574	Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1451709	Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html	Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html	Mailing List Patch Third Party Advisory
https://security.gentoo.org/glsa/201706-03	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2017-05-17 15:29

Updated : 2025-04-20 01:37

NVD link : CVE-2017-7493

Mitre link : CVE-2017-7493

CVE.ORG link : CVE-2017-7493

JSON object : View

Products Affected

qemu

qemu

debian

debian_linux

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

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