CVE-2015-8555
Published: 13 April 2016
Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from other domains via unspecified vectors.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
xen Launchpad, Ubuntu, Debian |
precise |
Released
(4.1.6.1-0ubuntu0.12.04.8)
|
| trusty |
Released
(4.4.2-0ubuntu0.14.04.4)
|
|
| upstream |
Needs triage
|
|
| vivid |
Released
(4.5.0-1ubuntu4.4)
|
|
| wily |
Released
(4.5.1-0ubuntu1.2)
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.6 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |