Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-3748 | First vendor Publication | 2022-03-23 |
| Vendor | Cve | Last vendor Modification | 2023-01-03 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.5 | ||
| Base Score | 7.5 | Environmental Score | 7.5 |
| impact SubScore | 6 | Temporal Score | 7.5 |
| Exploitabality Sub Score | 0.8 | ||
| Attack Vector | Local | Attack Complexity | High |
| Privileges Required | High | 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:M/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 6.9 | Attack Range | Local |
| Cvss Impact Score | 10 | Attack Complexity | Medium |
| Cvss Expoit Score | 3.4 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3748 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-416 | Use After Free |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2024-02-02 02:27:32 |
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| 2024-02-01 12:24:25 |
|
| 2023-09-05 13:21:52 |
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| 2023-09-05 01:23:56 |
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| 2023-09-02 13:20:21 |
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| 2023-09-02 01:24:17 |
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| 2023-08-12 13:26:25 |
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| 2023-08-12 01:23:31 |
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| 2023-08-11 13:18:41 |
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| 2023-08-11 01:24:18 |
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| 2023-08-06 13:16:38 |
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| 2023-08-06 01:23:15 |
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| 2023-08-04 13:17:00 |
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| 2023-08-04 01:23:36 |
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| 2023-07-14 13:17:04 |
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| 2023-07-14 01:23:24 |
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| 2023-03-29 02:19:11 |
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| 2023-03-28 12:23:37 |
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| 2023-01-03 21:27:23 |
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| 2022-10-26 17:27:38 |
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| 2022-10-11 13:08:44 |
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| 2022-10-11 01:23:04 |
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| 2022-09-05 13:27:38 |
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| 2022-08-19 09:27:36 |
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| 2022-08-15 17:27:41 |
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| 2022-05-13 17:27:21 |
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| 2022-04-26 02:05:44 |
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| 2022-04-04 21:23:19 |
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| 2022-03-30 00:22:51 |
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| 2022-03-24 17:22:55 |
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| 2022-03-24 00:22:53 |
|
