Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-28702 | First vendor Publication | 2021-10-06 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.6 | ||
| Base Score | 7.6 | Environmental Score | 7.6 |
| impact SubScore | 6 | Temporal Score | 7.6 |
| Exploitabality Sub Score | 0.9 | ||
| Attack Vector | Physical | Attack Complexity | Low |
| Privileges Required | None | User Interaction | None |
| Scope | Changed | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 4.6 | Attack Range | Local |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 3.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR"). These are typically used for platform tasks such as legacy USB emulation. If such a device is passed through to a guest, then on guest shutdown the device is not properly deassigned. The IOMMU configuration for these devices which are not properly deassigned ends up pointing to a freed data structure, including the IO Pagetables. Subsequent DMA or interrupts from the device will have unpredictable behaviour, ranging from IOMMU faults to memory corruption. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28702 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-269 | Improper Privilege Management |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:33:49 |
|
| 2023-08-02 02:04:28 |
|
| 2022-10-29 09:27:51 |
|
| 2022-08-15 17:27:47 |
|
| 2021-12-16 21:23:08 |
|
| 2021-12-07 21:23:12 |
|
| 2021-11-30 17:23:07 |
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| 2021-11-29 05:23:06 |
|
| 2021-11-23 21:23:20 |
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| 2021-11-18 05:23:09 |
|
| 2021-11-10 09:23:27 |
|
| 2021-10-30 09:23:11 |
|
| 2021-10-16 00:23:00 |
|
| 2021-10-15 17:22:59 |
|
| 2021-10-08 00:22:51 |
|
| 2021-10-06 21:23:16 |
|
