PT-2017-10389
CVE-2016-9932
·
Published
2016-12-21
·
Updated
2024-06-15
Description by
CVSS 3.1
3.3
LowMetricsAV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Name of the Vulnerable Software and Affected Versions
Xen versions 3.3.x through 4.7.x
Description
The issue allows local HVM guest OS users to obtain sensitive information from host stack memory. This is achieved through the CMPXCHG8B emulation on x86 systems, where a supposedly-ignored operand size prefix is used.
Recommendations
For Xen versions 3.3.x through 4.7.x, consider restricting access to the CMPXCHG8B emulation to minimize the risk of exploitation until a patch is available.
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