CVE-2017-7493

HIGH7.8

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

Published May 17, 2017

Modified 1 years ago

No fix available

Details

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.

References

WEBhttp://seclists.org/oss-sec/2017/q2/278 WEBhttp://www.securityfocus.com/bid/98574 WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=1451709 WEBhttps://lists.debian.org/debian-lts-announce/2018/09/msg00007.html WEBhttps://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html ADVISORYhttps://security.gentoo.org/glsa/201706-03 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2017-7493

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedMay 17, 2017

ModifiedAug 5, 2024