Improper Validation of Array Index Affecting qemu package, versions <2.0.0+dfsg-2ubuntu1.30
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Test your applications- Snyk ID SNYK-UBUNTU1404-QEMU-427623
- published 10 Dec 2016
- disclosed 10 Dec 2016
Introduced: 10 Dec 2016
CVE-2016-7170 Open this link in a new tabHow to fix?
Upgrade Ubuntu:14.04 qemu to version 2.0.0+dfsg-2ubuntu1.30 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
The vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors related to cursor.mask[] and cursor.image[] array sizes when processing a DEFINE_CURSOR svga command.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7170
- http://git.qemu.org/?p=qemu.git;a=commit;h=167d97a3def77ee2dbf6e908b0ecbfe2103977db
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://security-tracker.debian.org/tracker/CVE-2016-7170
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
- http://www.openwall.com/lists/oss-security/2016/09/09/4
- http://www.openwall.com/lists/oss-security/2016/09/09/7
- http://www.securityfocus.com/bid/92904
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=167d97a3def77ee2dbf6e908b0ecbfe2103977db