CVE-2015-8555
Last modified
CVE-2015-8555 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.25% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Citrix | Xenserver | 6.0 |
| Xen | Xen | 4.3.0 |
| Xen | Xen | 4.3.1 |
| Xen | Xen | 4.3.2 |
| Xen | Xen | 4.3.3 |
| Xen | Xen | 4.3.4 |
| Xen | Xen | 4.4.0 |
| Xen | Xen | 4.4.1 |
| Xen | Xen | 4.4.2 |
| Xen | Xen | 4.4.3 |
| Xen | Xen | 4.4.4 |
| Xen | Xen | 4.5.0 |
| Xen | Xen | 4.5.1 |
| Xen | Xen | 4.5.2 |
| Xen | Xen | 4.5.3 |
| Xen | Xen | 4.6.0 |
| Xen | Xen | 4.6.1 |
References
- http://xenbits.xen.org/xsa/advisory-165.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/advisory-165.htmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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