Published: 17/05/2017 Updated: 23/10/2020

CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 409

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

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.

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qemu qemu
debian debian linux 8.0

Several security issues were fixed in QEMU ...

USN-3414-1 introduced a regression in QEMU ...

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 ...

CWE-732 https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html https://bugzilla.redhat.com/show_bug.cgi?id=1451709 http://seclists.org/oss-sec/2017/q2/278 http://www.securityfocus.com/bid/98574 https://security.gentoo.org/glsa/201706-03 https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html https://nvd.nist.gov https://usn.ubuntu.com/3414-1/

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CVE-2017-7493

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