Vulnerability Monitor

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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.

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)