Executive Summary
This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-27821 | First vendor Publication | 2020-12-08 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 6 | ||
| Base Score | 6 | Environmental Score | 6 |
| impact SubScore | 4 | Temporal Score | 6 |
| Exploitabality Sub Score | 1.5 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | High | User Interaction | None |
| Scope | Changed | 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:P) | |||
|---|---|---|---|
| Cvss Base Score | 2.1 | Attack Range | Local |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 3.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27821 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2024-02-02 02:15:46 |
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| 2024-02-01 12:20:44 |
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| 2023-11-07 21:36:14 |
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| 2023-09-05 13:10:13 |
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| 2023-09-05 01:20:21 |
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| 2023-09-02 13:09:00 |
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| 2023-09-02 01:20:39 |
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| 2023-08-12 13:13:46 |
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| 2023-08-12 01:19:53 |
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| 2023-08-11 13:06:48 |
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| 2023-08-11 01:20:32 |
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| 2023-08-06 13:05:03 |
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| 2023-08-06 01:19:43 |
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| 2023-08-04 13:05:24 |
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| 2023-08-04 01:20:01 |
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| 2023-07-14 13:05:25 |
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| 2023-07-14 01:19:51 |
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| 2023-03-29 02:08:00 |
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| 2023-03-28 12:20:04 |
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| 2022-10-28 12:52:46 |
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| 2022-10-11 12:58:22 |
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| 2022-10-11 01:19:39 |
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| 2022-10-01 00:27:46 |
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| 2022-09-05 12:48:04 |
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| 2022-08-06 09:27:42 |
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| 2021-05-05 01:39:50 |
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| 2021-05-04 13:52:17 |
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| 2021-04-22 03:03:47 |
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| 2021-02-02 01:30:19 |
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| 2021-01-15 17:22:53 |
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| 2020-12-17 05:22:50 |
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| 2020-12-10 21:23:35 |
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| 2020-12-09 17:22:55 |
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| 2020-12-09 05:22:55 |
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