Description (CNA)
The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions (MPX) and Protection Key (PKU) features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://xenbits.xen.org/xsa/advisory-220.html
- https://security.gentoo.org/glsa/201708-03
- http://www.debian.org/security/2017/dsa-3969
- http://www.securitytracker.com/id/1038730
- http://www.securityfocus.com/bid/99167
ADP enrichment
No English description supplied.