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CVE-2013-2076

N/A

Published: August 28, 2013 at 05:00 PM UTC

Updated: June 16, 2026 at 11:52 PM UTC

1 product affected across 1 vendorXen

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Severity

N/A

Exploit prediction

EPSS 0.5%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xen · Xenwordpress-plugin

95%

4.0.0 4.0.1 4.0.2 4.0.3 4.0.4 4.1.0 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.2.0 4.2.1 4.2.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor Advisoryx_refsource_SUSE

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html

Third Party Advisoryx_refsource_SECUNIA

Source: [email protected]

http://secunia.com/advisories/55082

Vendor Advisoryx_refsource_GENTOO

Source: [email protected]

http://security.gentoo.org/glsa/glsa-201309-24.xml

Vendor Advisoryx_refsource_DEBIAN

Source: [email protected]

http://www.debian.org/security/2014/dsa-3006

Mailing Listx_refsource_MLIST

Source: [email protected]

http://www.openwall.com/lists/oss-security/2013/06/03/1

CVSS

4.3MEDIUM[email protected]

Confidentiality: COMPLETE
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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