CVE-2016-3159

3.8LOW

Key Information:

Vendor
Oracle
Status
Vm Server
Vendor
CVE Published:
13 April 2016

Summary

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.

References

http://www.oracle.com/technetwork/topics/security/ovmbull...
x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-announce...
vendor-advisoryx_refsource_FEDORA
http://xenbits.xen.org/xsa/advisory-172.html
x_refsource_CONFIRM

CVSS V3.1

Score:
3.8
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.