Vulnerability in Xen
CVE-2016-4963
The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Xen — versions 4.0.0, 4.0.1, 4.0.2
Weakness classification (CWE)
References
- lists.debian.org/debian-lts-announce/2018/09/msg00006.html (mailing-list)
- www.securitytracker.com/id/1036024 (vdb-entry)
- xenbits.xen.org/xsa/advisory-178.html (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-4963?
- CVE-2016-4963 is a medium-severity vulnerability in Xen, classified under Improper Access Control. CVSS score: 4.7/10. Published 2016-06-07.
- How severe is CVE-2016-4963?
- Medium severity. CVSS v3 base score is 4.7 out of 10.