Executive Summary
Informations | |||
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Name | CVE-2021-28699 | First vendor Publication | 2021-08-27 |
Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
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Overall CVSS Score | 5.5 | ||
Base Score | 5.5 | Environmental Score | 5.5 |
impact SubScore | 3.6 | Temporal Score | 5.5 |
Exploitabality Sub Score | 1.8 | ||
Attack Vector | Local | Attack Complexity | Low |
Privileges Required | Low | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 4.9 | Attack Range | Local |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 3.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. That is, when operating in this mode, a guest has two tables. As a result, guests also need to be able to retrieve the addresses that the new status tracking table can be accessed through. For 32-bit guests on x86, translation of requests has to occur because the interface structure layouts commonly differ between 32- and 64-bit. The translation of the request to obtain the frame numbers of the grant status table involves translating the resulting array of frame numbers. Since the space used to carry out the translation is limited, the translation layer tells the core function the capacity of the array within translation space. Unfortunately the core function then only enforces array bounds to be below 8 times the specified value, and would write past the available space if enough frame numbers needed storing. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28699 |
CPE : Common Platform Enumeration
Type | Description | Count |
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Os | 1 | |
Os | 3 | |
Os | 1 |
Sources (Detail)
Alert History
Date | Informations |
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2023-11-07 21:34:08 |
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2022-09-29 00:28:04 |
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2022-08-15 17:27:48 |
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2021-12-17 00:23:11 |
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2021-09-25 05:23:07 |
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2021-09-21 17:23:03 |
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2021-09-15 00:23:03 |
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2021-09-06 05:22:50 |
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2021-09-02 00:22:54 |
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2021-08-28 09:22:50 |
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2021-08-28 00:22:49 |
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