Security Techniques

Xen exploitation part 3: XSA

Xen exploitation part 3: XSA: This is the last part of our blogpost series about Xen security [1] [2]. This time we write about a vulnerability we found (XSA-182) [0] (CVE-2016-6258) and his exploitation on Qubes OS [3] project.

We first explain the methodology used to find the vulnerability and then the exploitation specificity on Qubes OS.

We would like to emphasize that the vulnerability is not in the code of Qubes OS. But since Qubes OS relies on Xen hypervisor, it is affected by this vulnerability. More information is provided by Qubes’ security bulletin #24 [8].