CVE-2016-7154
Publication date 21 September 2016
Last updated 25 August 2025
Ubuntu priority
Description
Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| xen | 16.04 LTS xenial |
Not affected
|
| 14.04 LTS trusty |
Fixed 4.4.2-0ubuntu0.14.04.7
|
|
Notes
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.7 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |