CVE-2017-7471

EUVD-2017-16494
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9 CRITICAL
ADJACENT_NETWORK
LOW
LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
Affected Products (NVD)
VendorProductVersion
qemuqemu
𝑥
≤ 2.8.1.1
qemuqemu
2.9.0:rc0
qemuqemu
2.9.0:rc1
qemuqemu
2.9.0:rc2
qemuqemu
2.9.0:rc3
qemuqemu
2.9.0:rc4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bookworm
1:7.2+dfsg-7+deb12u7
fixed
bullseye
1:5.2+dfsg-11+deb11u3
fixed
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
jessie
not-affected
sid
1:9.1.1+ds-2
fixed
trixie
1:9.1.1+ds-2
fixed
wheezy
not-affected
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
precise
dne
trusty
not-affected
xenial
not-affected
yakkety
not-affected
zesty
not-affected
qemu-kvm
precise
not-affected
trusty
dne
xenial
dne
yakkety
dne
zesty
dne
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2017/04/19/2
http://www.securityfocus.com/bid/97970
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
https://security.gentoo.org/glsa/201706-03
http://www.openwall.com/lists/oss-security/2017/04/19/2
http://www.securityfocus.com/bid/97970
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
https://security.gentoo.org/glsa/201706-03