Buffer overflow in Xen
CVE-2016-7094
Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% 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
Weakness classification (CWE)
References
- www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- www.debian.org/security/2016/dsa-3663 (vendor-advisory)
- www.securityfocus.com/bid/92864 (VDB Entry, Third Party Advisory, vdb-entry)
- xenbits.xen.org/xsa/advisory-187.html (Patch, Vendor Advisory)
- support.citrix.com/article/CTX216071 (Third Party Advisory)
- www.securitytracker.com/id/1036753 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201611-09 (vendor-advisory)
- xenbits.xen.org/xsa/xsa187-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg_reg.pa… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2016-7094?
- CVE-2016-7094 is a medium-severity vulnerability in Xen, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.1/10. Published 2016-09-21.
- How severe is CVE-2016-7094?
- Medium severity. CVSS v3 base score is 4.1 out of 10.