CVE-2017-7471

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 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.

Category

9.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.20% Top 25%
Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9c6b899f7a46893ab3b671e341a2234e9c0c060e
https://security.gentoo.org/glsa/201706-03 third party advisory vendor advisory
http://www.securityfocus.com/bid/97970 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7471 patch third party advisory issue tracking
http://www.openwall.com/lists/oss-security/2017/04/19/2 patch mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-7471?
CVE-2017-7471 has been scored as a critical severity vulnerability.
How to fix CVE-2017-7471?
To fix CVE-2017-7471, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7471 being actively exploited in the wild?
It is possible that CVE-2017-7471 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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