Vulnerability in Xen
CVE-2017-17566
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% 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
References
- www.securitytracker.com/id/1040768 (vdb-entry)
- xenbits.xen.org/xsa/advisory-248.html (Patch, Mitigation, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/01/msg00003.html (mailing-list)
- www.securityfocus.com/bid/102167 (vdb-entry)
- lists.debian.org/debian-lts-announce/2018/10/msg00009.html (mailing-list)
- www.openwall.com/lists/oss-security/2017/12/12/4 (Mailing List)
- security.gentoo.org/glsa/201801-14 (vendor-advisory)
- www.debian.org/security/2018/dsa-4112 (vendor-advisory)
- support.citrix.com/article/CTX232096
Frequently asked questions
- What is CVE-2017-17566?
- CVE-2017-17566 is a high-severity vulnerability in Xen. CVSS score: 7.8/10. Published 2017-12-12.
- How severe is CVE-2017-17566?
- High severity. CVSS v3 base score is 7.8 out of 10.