Vulnerability Details : CVE-2017-8903
Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.
Vulnerability category: Execute code
Products affected by CVE-2017-8903
- cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-8903
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-8903
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
2.0
|
6.0
|
NIST |
References for CVE-2017-8903
-
https://blog.xenproject.org/2017/05/02/updates-on-xsa-213-xsa-214-and-xsa-215/
Updates on XSA-213, XSA-214 and XSA-215 - Xen ProjectVendor Advisory
-
http://www.securitytracker.com/id/1038386
Xen IRET Hypercall Mode Switching Bug Lets Local Users on a Guest System Gain Elevated Privileges on the Host System - SecurityTracker
-
https://xenbits.xen.org/xsa/advisory-213.html
XSA-213 - Xen Security AdvisoriesMitigation;Patch;Vendor Advisory
-
https://security.gentoo.org/glsa/201705-11
Xen: Multiple vulnerabilities (GLSA 201705-11) — Gentoo security
-
http://www.securityfocus.com/bid/98426
Xen CVE-2017-8903 Arbitrary Code Execution Vulnerability
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