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CVE-2016-7093

Publication date 21 September 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.2 · High

Score breakdown

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Notes

mdeslaur

hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary

Severity score breakdown

Parameter Value
Base score 8.2 · High
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H