The x86 emulator in KVM 83, when a guest is...
Vulnerability Description
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=560654
- http://www.securityfocus.com/bid/38158
- https://rhn.redhat.com/errata/RHSA-2010-0088.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953
- http://www.debian.org/security/2010/dsa-1996
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://secunia.com/advisories/38499
- http://secunia.com/advisories/38492
Affected Vendor
kvm qumranet
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.