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VULNERABILITIES

CVE-2016-3159 Details

Description

The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:3.8 LOWVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html CVEMailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html CVEMailing ListThird Party Advisory
http://support.citrix.com/article/CTX209443 CVEThird Party Advisory
http://www.debian.org/security/2016/dsa-3554 CVEThird Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html CVEThird Party Advisory

see all 18 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-200Exposure of Sensitive Information to an Unauthorized Actor[email protected]
CWE-284Improper Access Control[email protected]

Affected Products

ProductVersions
oracle vm server
3.3
3.4

CPE

  • cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*
  • cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
xen xen
>= 4.3.0, <= 4.3.4
>= 4.4.0, <= 4.4.4
>= 4.5.0, <= 4.5.3
>= 4.6.0, <= 4.6.1

CPE

  • cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
22
23

CPE

  • cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

10 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-3159
NVD Published Date:
Apr 13, 2016
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-3159 Details - Not Deferred