Vulnerability in Qemu
CVE-2016-6351
The esp_do_dma function in hw/scsi/esp.c in QEMU (aka Quick Emulator), when built with ESP/NCR53C9x controller emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or execute arbitrary code on the QEMU host via vectors involving DMA read into ESP command buffer.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Qemu
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0
References
- www.ubuntu.com/usn/USN-3047-1 (vendor-advisory, Third Party Advisory)
- git.qemu.org/
- www.ubuntu.com/usn/USN-3047-2 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/07/25/14 (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/07/26/7 (mailing-list, Mailing List, Third Party Advisory)
- git.qemu.org/
- www.securityfocus.com/bid/92119 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/11/msg00038.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-6351?
- CVE-2016-6351 is a medium-severity vulnerability in Qemu. CVSS score: 6.7/10. Published 2016-09-07.
- How severe is CVE-2016-6351?
- Medium severity. CVSS v3 base score is 6.7 out of 10.