Vulnerability in Xen
CVE-2016-9377
Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service (guest crash) by leveraging IDT entry miscalculation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.5% 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
- Xen — versions 4.5.0, 4.5.1, 4.5.2
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201612-56 (vendor-advisory)
- www.securityfocus.com/bid/94475 (vdb-entry)
- xenbits.xen.org/xsa/advisory-196.html (Patch, Vendor Advisory)
- www.securitytracker.com/id/1037345 (vdb-entry)
Frequently asked questions
- What is CVE-2016-9377?
- CVE-2016-9377 is a medium-severity vulnerability in Xen, classified under Incorrect Calculation. CVSS score: 5.5/10. Published 2017-02-22.
- How severe is CVE-2016-9377?
- Medium severity. CVSS v3 base score is 5.5 out of 10.