Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-20322 | First vendor Publication | 2022-02-18 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 7.4 | ||
| Base Score | 7.4 | Environmental Score | 7.4 |
| impact SubScore | 5.2 | Temporal Score | 7.4 |
| Exploitabality Sub Score | 2.2 | ||
| Attack Vector | Network | Attack Complexity | High |
| Privileges Required | None | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 5.8 | Attack Range | Network |
| Cvss Impact Score | 4.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 8.6 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20322 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-330 | Use of Insufficiently Random Values |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-03-29 02:44:07 |
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| 2025-03-28 13:23:55 |
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| 2025-03-28 02:30:49 |
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| 2025-03-18 02:37:35 |
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| 2025-03-14 02:28:57 |
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| 2025-01-08 02:24:21 |
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| 2025-01-07 02:23:59 |
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| 2024-12-25 02:23:24 |
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| 2024-12-12 02:25:35 |
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| 2024-11-28 13:50:44 |
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| 2024-11-21 21:49:07 |
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| 2024-11-14 02:21:41 |
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| 2024-11-09 02:22:24 |
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| 2024-10-26 02:20:26 |
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| 2024-10-25 02:22:10 |
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| 2024-10-23 02:21:40 |
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| 2024-10-03 02:18:33 |
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| 2024-10-02 02:17:01 |
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| 2024-09-04 02:16:34 |
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| 2024-08-22 02:15:05 |
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| 2024-08-02 13:20:35 |
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| 2024-08-02 01:24:11 |
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| 2024-03-12 13:12:29 |
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| 2024-02-02 02:21:07 |
|
| 2024-02-01 12:22:34 |
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| 2024-01-12 02:13:53 |
|
| 2023-12-29 02:12:18 |
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| 2023-11-22 02:11:49 |
|
| 2023-11-09 17:31:55 |
|
| 2023-09-29 13:06:37 |
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| 2023-09-05 13:15:28 |
|
| 2023-09-05 01:22:09 |
|
| 2023-09-02 13:14:12 |
|
| 2023-09-02 01:22:28 |
|
| 2023-08-12 13:20:04 |
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| 2023-08-12 01:21:40 |
|
| 2023-08-11 13:12:38 |
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| 2023-08-11 01:22:21 |
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| 2023-08-06 13:10:44 |
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| 2023-08-06 01:21:26 |
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| 2023-08-04 13:11:06 |
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| 2023-08-04 01:21:46 |
|
| 2023-07-14 13:11:08 |
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| 2023-07-14 01:21:36 |
|
| 2023-06-06 13:03:44 |
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| 2023-05-17 12:57:35 |
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| 2023-04-13 01:59:55 |
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| 2023-03-29 02:13:30 |
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| 2023-03-28 12:21:51 |
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| 2023-03-25 01:59:46 |
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| 2023-01-25 01:59:53 |
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| 2023-01-20 01:59:28 |
|
| 2022-11-08 01:53:53 |
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| 2022-10-11 13:03:34 |
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| 2022-10-11 01:21:24 |
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| 2022-09-09 01:58:59 |
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| 2022-07-28 13:27:26 |
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| 2022-07-26 00:29:39 |
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| 2022-03-10 21:23:07 |
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| 2022-03-03 17:23:04 |
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| 2022-03-02 00:23:01 |
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| 2022-03-01 00:23:00 |
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| 2022-02-18 21:22:52 |
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