CVE-2017-7493
7.8
HIGH
CVSS 3.1
EPSS 0.06%
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 virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest.
How to fix CVE-2017-7493
To remediate CVE-2017-7493, upgrade the affected package to a fixed version below.
- Debian/qemu—upgrade to 1:2.8+dfsg-6 or later
Is CVE-2017-7493 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:2.8+dfsg-6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |