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CVE-2017-12136

Publication date 24 August 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 17.04 zesty
Fixed 4.8.0-1ubuntu2.4
16.04 LTS xenial
Fixed 4.6.5-0ubuntu1.4
14.04 LTS trusty Not in release

Notes

sbeattie

xen 4.6 and later are vulnerable

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H