Integer overflow in Citrix Xenserver
CVE-2016-3712
Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.4% 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
- Citrix Xenserver
- Oracle Vm Server — versions 3.3, 3.4
- Qemu — versions 2.6.0
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4, 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.3, 7.4, 7.5
- Red Hat Enterprise Linux Server Tus — versions 7.3, 7.6, 7.7
Weakness classification (CWE)
References
- xenbits.xen.org/xsa/advisory-179.html (Third Party Advisory)
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0621.html (vendor-advisory, Third Party Advisory)
- support.citrix.com/article/CTX212736 (Third Party Advisory)
- lists.gnu.org/archive/html/qemu-devel/2016-05/msg01196.html (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2016/05/09/4 (mailing-list, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1035794 (VDB Entry, Third Party Advisory, vdb-entry)
- www.ubuntu.com/usn/USN-2974-1 (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2585.html (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2016/dsa-3573 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-3712?
- CVE-2016-3712 is a medium-severity vulnerability in Citrix Xenserver, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2016-05-11.
- How severe is CVE-2016-3712?
- Medium severity. CVSS v3 base score is 5.5 out of 10.