Buffer overflow in Qemu
CVE-2016-4454
The vmsvga_fifo_read_raw function in hw/display/vmware_vga.c in QEMU allows local guest OS administrators to obtain sensitive host memory information or cause a denial of service (QEMU process crash) by changing FIFO registers and issuing a VGA command, which triggers an out-of-bounds read.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Qemu
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- www.ubuntu.com/usn/USN-3047-1 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/05/30/3 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201609-01 (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-3047-2 (vendor-advisory, Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2016-05/msg05271.html (Vendor Advisory, mailing-list, Patch, Mailing List)
- www.securityfocus.com/bid/90927 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/11/msg00038.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-4454?
- CVE-2016-4454 is a medium-severity vulnerability in Qemu, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.0/10. Published 2016-06-01.
- How severe is CVE-2016-4454?
- Medium severity. CVSS v3 base score is 6.0 out of 10.