CVE-2017-7493

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
redhatCNA
---
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CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
VendorProductVersion
qemuqemu
𝑥
≤ 2.9.1
debiandebian_linux
8.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
fixed
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
bookworm
1:7.2+dfsg-7+deb12u7
fixed
sid
1:9.1.1+ds-2
fixed
trixie
1:9.1.1+ds-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
not-affected
disco
not-affected
cosmic
not-affected
bionic
not-affected
artful
not-affected
zesty
Fixed 1:2.8+dfsg-3ubuntu2.4
released
yakkety
ignored
xenial
Fixed 1:2.5+dfsg-5ubuntu10.15
released
trusty
Fixed 2.0.0+dfsg-2ubuntu1.35
released
qemu-kvm
hirsute
dne
groovy
dne
focal
dne
eoan
dne
disco
dne
cosmic
dne
bionic
dne
artful
dne
zesty
dne
yakkety
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
http://seclists.org/oss-sec/2017/q2/278
http://www.securityfocus.com/bid/98574
https://bugzilla.redhat.com/show_bug.cgi?id=1451709
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html
https://security.gentoo.org/glsa/201706-03
http://seclists.org/oss-sec/2017/q2/278
http://www.securityfocus.com/bid/98574
https://bugzilla.redhat.com/show_bug.cgi?id=1451709
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html
https://security.gentoo.org/glsa/201706-03