CVE-2013-2076: Infoleak
First published: Wed Aug 28 2013(Updated: )
Xen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xen Xen | =4.0.0 | |
| Xen Xen | =4.0.1 | |
| Xen Xen | =4.0.2 | |
| Xen Xen | =4.0.3 | |
| Xen Xen | =4.0.4 | |
| Xen Xen | =4.2.0 | |
| Xen Xen | =4.2.1 | |
| Xen Xen | =4.2.2 | |
| Xen Xen | =4.1.0 | |
| Xen Xen | =4.1.1 | |
| Xen Xen | =4.1.2 | |
| Xen Xen | =4.1.3 | |
| Xen Xen | =4.1.4 | |
| Xen Xen | =4.1.5 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- collector/nvd-index
- agent/severity
- agent/author
- agent/weakness
- agent/references
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/last-modified-date
- agent/tags
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- vendor/xen
- canonical/xen xen
- version/xen xen/4.0.0
- version/xen xen/4.0.1
- version/xen xen/4.0.2
- version/xen xen/4.0.3
- version/xen xen/4.0.4
- version/xen xen/4.2.0
- version/xen xen/4.2.1
- version/xen xen/4.2.2
- version/xen xen/4.1.0
- version/xen xen/4.1.1
- version/xen xen/4.1.2
- version/xen xen/4.1.3
- version/xen xen/4.1.4
- version/xen xen/4.1.5