Information disclosure in Xen
CVE-2017-10916
The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (70.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Xen — versions 4.5.0, 4.5.1, 4.5.2
Weakness classification (CWE)
References
- xenbits.xen.org/xsa/advisory-220.html (Mailing List, Mitigation, Vendor Advisory)
- security.gentoo.org/glsa/201708-03 (vendor-advisory)
- www.debian.org/security/2017/dsa-3969 (vendor-advisory)
- www.securitytracker.com/id/1038730 (vdb-entry)
- www.securityfocus.com/bid/99167 (vdb-entry)
Frequently asked questions
- What is CVE-2017-10916?
- CVE-2017-10916 is a high-severity vulnerability in Xen, classified under Information Disclosure. CVSS score: 7.5/10. Published 2017-07-05.
- How severe is CVE-2017-10916?
- High severity. CVSS v3 base score is 7.5 out of 10.