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Vulnerability Details : CVE-2013-2076

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.
Publish Date : 2013-08-28 Last Update Date : 2014-04-19
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
DSA-3006-1 xen - security update oval:org.mitre.oval:def:26366 unix
SUSE-SU-2013:1075-1 -- Security update for Xen oval:org.mitre.oval:def:25689 unix
SUSE-SU-2013:1314-1 -- Security update for Xen oval:org.mitre.oval:def:25878 unix
SUSE-SU-2014:0446-1 -- Security update for Xen oval:org.mitre.oval:def:25115 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2013-2076

# Product Type Vendor Product Version Update Edition Language
1 OS XEN XEN 4.0.0 Version Details Vulnerabilities
2 OS XEN XEN 4.0.1 Version Details Vulnerabilities
3 OS XEN XEN 4.0.2 Version Details Vulnerabilities
4 OS XEN XEN 4.0.3 Version Details Vulnerabilities
5 OS XEN XEN 4.0.4 Version Details Vulnerabilities
6 OS XEN XEN 4.1.0 Version Details Vulnerabilities
7 OS XEN XEN 4.1.1 Version Details Vulnerabilities
8 OS XEN XEN 4.1.2 Version Details Vulnerabilities
9 OS XEN XEN 4.1.3 Version Details Vulnerabilities
10 OS XEN XEN 4.1.4 Version Details Vulnerabilities
11 OS XEN XEN 4.1.5 Version Details Vulnerabilities
12 OS XEN XEN 4.2.0 Version Details Vulnerabilities
13 OS XEN XEN 4.2.1 Version Details Vulnerabilities
14 OS XEN XEN 4.2.2 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
XEN XEN 14

- References For CVE-2013-2076

http://secunia.com/advisories/55082
SECUNIA 55082
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html
SUSE SUSE-SU-2014:0446
http://security.gentoo.org/glsa/glsa-201309-24.xml
GENTOO GLSA-201309-24
http://www.openwall.com/lists/oss-security/2013/06/03/1
MLIST [oss-security] 20130603 Xen Security Advisory 52 (CVE-2013-2076) - Information leak on XSAVE/XRSTOR capable AMD CPUs

- Metasploit Modules Related To CVE-2013-2076

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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