CVE ID:	CVE-2018-16872
Description:	A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.
Test IDs:	1.3.6.1.4.1.25623.1.0.891694
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2018-16872 106212 http://www.securityfocus.com/bid/106212 20190531 [SECURITY] [DSA 4454-1] qemu security update https://seclists.org/bugtraq/2019/May/76 DSA-4454 https://www.debian.org/security/2019/dsa-4454 FEDORA-2019-0664c7724d https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/ FEDORA-2019-88a98ce795 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/ USN-3923-1 https://usn.ubuntu.com/3923-1/ [debian-lts-announce] 20190228 [SECURITY] [DLA 1694-1] qemu security update https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16872 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16872 openSUSE-SU-2019:1074 http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html