CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-9932 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
Base Score | 3.5 |
---|---|
Base Metrics | AV:N/AC:M/Au:S/C:P/I:N/A:N |
Access Vector | Network |
Access Complexity | Medium |
Authentication | Single |
Confidentiality Impact | Partial |
Integrity Impact | None |
Availability Impact | None |
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 5 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Changed |
Confidentiality | Low |
Integrity Impact | None |
Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 5 | xen | Will not fix |