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CVE-2017-7493

CVE-2017-7493

EPSS 0.4%
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.
Affected products
QEMU · qemu

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