Rapid7 Vulnerability & Exploit Database

Huawei EulerOS: CVE-2018-16872: qemu-kvm security update

Back to Search

Huawei EulerOS: CVE-2018-16872: qemu-kvm security update

Severity
4
CVSS
(AV:N/AC:M/Au:S/C:P/I:N/A:N)
Published
12/13/2018
Created
08/29/2019
Added
08/28/2019
Modified
08/28/2019

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.

Solution(s)

  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-alsa
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-oss
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-pa
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-sdl
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-curl
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-dmg
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-gluster
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-iscsi
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-nfs
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-rbd
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-ssh
  • huawei-euleros-2_0_sp8-upgrade-qemu-common
  • huawei-euleros-2_0_sp8-upgrade-qemu-img
  • huawei-euleros-2_0_sp8-upgrade-qemu-kvm
  • huawei-euleros-2_0_sp8-upgrade-qemu-system-aarch64
  • huawei-euleros-2_0_sp8-upgrade-qemu-system-aarch64-core
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-curses
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-gtk
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-sdl

References

  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-alsa
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-oss
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-pa
  • huawei-euleros-2_0_sp8-upgrade-qemu-audio-sdl
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-curl
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-dmg
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-gluster
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-iscsi
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-nfs
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-rbd
  • huawei-euleros-2_0_sp8-upgrade-qemu-block-ssh
  • huawei-euleros-2_0_sp8-upgrade-qemu-common
  • huawei-euleros-2_0_sp8-upgrade-qemu-img
  • huawei-euleros-2_0_sp8-upgrade-qemu-kvm
  • huawei-euleros-2_0_sp8-upgrade-qemu-system-aarch64
  • huawei-euleros-2_0_sp8-upgrade-qemu-system-aarch64-core
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-curses
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-gtk
  • huawei-euleros-2_0_sp8-upgrade-qemu-ui-sdl

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;