CVE-2017-15589

Description

An issue was discovered in Xen through 4.9.x allowing x86 HVM guest OS users to obtain sensitive information from the host OS (or an arbitrary guest OS) because intercepted I/O operations can cause a write of data from uninitialized hypervisor stack memory.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.08%
Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html mailing list
http://www.securityfocus.com/bid/101496 vdb entry third party advisory
https://xenbits.xen.org/xsa/advisory-239.html mailing list patch mitigation vendor advisory
https://www.debian.org/security/2017/dsa-4050 vendor advisory
https://support.citrix.com/article/CTX228867
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html mailing list
https://security.gentoo.org/glsa/201801-14 vendor advisory
http://www.securitytracker.com/id/1039568 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-15589?
CVE-2017-15589 has been scored as a medium severity vulnerability.
How to fix CVE-2017-15589?
To fix CVE-2017-15589, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-15589 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-15589 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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