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.

References

http://www.securityfocus.com/bid/101496

http://www.securitytracker.com/id/1039568

https://lists.debian.org/debian-lts-announce/2017/11/msg00027.html

https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html

https://security.gentoo.org/glsa/201801-14

https://support.citrix.com/article/CTX228867

https://www.debian.org/security/2017/dsa-4050

https://xenbits.xen.org/xsa/advisory-239.html

Details

Risk Information

CVSS v2

CVSS v3