CVE-2017-8903

Impact:
Important
Public Date:
2017-05-02
Bugzilla:
1443222: CVE-2017-8903 xsa213 xen: x86: 64bit PV guest breakout via pagetable use-after-mode-change (XSA-213)

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2017-8903 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 8.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 xen Will not fix

Acknowledgements

Red Hat would like to thank the Xen project for reporting this issue. Upstream acknowledges Jann Horn (Google) as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.