9.0
CRITICAL
CVE-2017-7471
Qemu VirtFS 9pfs Improper Access Disclosure
Description

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.

INFO

Published Date :

July 9, 2018, 2:29 p.m.

Last Modified :

Feb. 12, 2023, 11:30 p.m.

Remotely Exploitable :

No

Impact Score :

6.0

Exploitability Score :

2.3
Affected Products

The following products are affected by CVE-2017-7471 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qemu qemu
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-7471.

URL Resource
http://www.openwall.com/lists/oss-security/2017/04/19/2 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/97970 Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 Issue Tracking Patch Third Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
https://security.gentoo.org/glsa/201706-03 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-7471 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-7471 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Removed Reference https://git.qemu.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e [Patch, Vendor Advisory]
    Added Reference https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e [No Types Assigned]
  • Reanalysis by [email protected]

    Sep. 10, 2020

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 2.8.1.1 *cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.9.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.9.0:rc3:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:2.9.0:rc4:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-284 CWE-284 CWE-732
  • Initial Analysis by [email protected]

    Sep. 06, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:A/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3 AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://git.qemu.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e No Types Assigned https://git.qemu.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e Patch, Vendor Advisory
    Changed Reference Type https://security.gentoo.org/glsa/201706-03 No Types Assigned https://security.gentoo.org/glsa/201706-03 Third Party Advisory
    Changed Reference Type http://www.openwall.com/lists/oss-security/2017/04/19/2 No Types Assigned http://www.openwall.com/lists/oss-security/2017/04/19/2 Mailing List, Patch, Third Party Advisory
    Changed Reference Type http://www.securityfocus.com/bid/97970 No Types Assigned http://www.securityfocus.com/bid/97970 Third Party Advisory, VDB Entry
    Added CWE CWE-284
    Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 11, 2018

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201706-03 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/97970 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.02%

score

0.24680

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability