Vulnerability in Qemu
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (56.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Qemu — versions 2.9.0
Weakness classification (CWE)
References
- git.qemu.org/
- security.gentoo.org/glsa/201706-03 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/97970 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2017/04/19/2 (mailing-list, Patch, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-7471?
- CVE-2017-7471 is a critical-severity vulnerability in Qemu, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.0/10. Published 2018-07-09.
- How severe is CVE-2017-7471?
- Critical severity. CVSS v3 base score is 9.0 out of 10.