CVE-2017-7471
published 2018-07-09CVE-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…
PriorityP342critical9CVSS 3.1
AVAACLPRLUINSCCHIHAH
EPSS
0.85%
54.3th percentile
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.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | qemu | < qemu 1:2.8+dfsg-5 (bookworm) | qemu 1:2.8+dfsg-5 (bookworm) |
| qemu | qemu | <= 2.8.1.1 | — |
| qemu | qemu | — | — |
| qemu | qemu | >= 0 < 1:2.8+dfsg-5 | 1:2.8+dfsg-5 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-5 | 1:2.8+dfsg-5 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-5 | 1:2.8+dfsg-5 |
| qemu | qemu | >= 0 < 1:2.8+dfsg-5 | 1:2.8+dfsg-5 |
CVSS provenance
nvdv3.19.0CRITICALCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.7HIGHAV:A/AC:L/Au:S/C:C/I:C/A:C
osv9.0CRITICAL
vendor_debian9.0CRITICAL
vendor_redhat9.0CRITICAL
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Red Hat
Qemu: 9p: virtfs allows guest to change filesystem attributes on host
vendor_redhat·2017-04-18·CVSS 9.0
CVE-2017-7471 [CRITICAL] CWE-284 Qemu: 9p: virtfs allows guest to change filesystem attributes on host
Qemu: 9p: virtfs allows guest to change filesystem attributes on host
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.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: xen (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7) - Not affected
Package: qemu-kvm (Red Hat Enterprise
Debian
CVE-2017-7471: qemu - Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 F...
vendor_debian·2017·CVSS 9.0
CVE-2017-7471 [CRITICAL] CVE-2017-7471: qemu - Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 F...
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.
Scope: local
bookworm: resolved (fixed in 1:2.8+dfsg-5)
bullseye: resolved (fixed in 1:2.8+dfsg-5)
forky: resolved (fixed in 1:2.8+dfsg-5)
sid: resolved (fixed in 1:2.8+dfsg-5)
trixie: resolved (fixed in 1:2.8+dfsg-5)
GHSA
GHSA-cjfg-wq59-q7v2: Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control
ghsa_unreviewed·2022-05-13
CVE-2017-7471 [CRITICAL] CWE-732 GHSA-cjfg-wq59-q7v2: Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control
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.
OSV
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
osv·2018-07-09·CVSS 9.0
CVE-2017-7471 [CRITICAL] 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
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host
bugzilla·2017-04-19·CVSS 9.0
CVE-2017-7471 [CRITICAL] CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host
CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host
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.
Upstream patches:
-> http://git.qemu-project.org/?p=qemu.git;a=commitdiff;h=9c6b899f7a46893ab3b671e341a2234e9c0c060e
Reference:
-> http://www.openwall.com/lists/oss-security/2017/04/19/2
Discussion:
Created qemu tracking bugs for this issue:
Affects: fedora-all [bug 1443403]
Bugzilla
CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host [fedora-all]
bugzilla·2017-04-19·CVSS 9.0
CVE-2017-7471 [CRITICAL] CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host [fedora-all]
CVE-2017-7471 Qemu: 9p: virtfs allows guest to change filesystem attributes on host [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple sup
http://www.openwall.com/lists/oss-security/2017/04/19/2http://www.securityfocus.com/bid/97970https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060ehttps://security.gentoo.org/glsa/201706-03http://www.openwall.com/lists/oss-security/2017/04/19/2http://www.securityfocus.com/bid/97970https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060ehttps://security.gentoo.org/glsa/201706-03
2018-07-09
Published