Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2023-4921 | First vendor Publication | 2023-09-12 |
| Vendor | Cve | Last vendor Modification | 2025-02-13 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.8 | ||
| Base Score | 7.8 | Environmental Score | 7.8 |
| impact SubScore | 5.9 | Temporal Score | 7.8 |
| Exploitabality Sub Score | 1.8 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : | |||
|---|---|---|---|
| Cvss Base Score | N/A | Attack Range | N/A |
| Cvss Impact Score | N/A | Attack Complexity | N/A |
| Cvss Expoit Score | N/A | Authentication | N/A |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4921 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-416 | Use After Free |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-03-29 03:28:55 |
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| 2025-03-28 13:38:52 |
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| 2025-03-28 03:09:11 |
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| 2025-03-19 03:05:02 |
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| 2025-03-18 03:17:31 |
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| 2025-03-14 03:05:29 |
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| 2025-02-21 21:21:09 |
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| 2025-02-13 21:21:38 |
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| 2025-01-08 02:58:27 |
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| 2025-01-07 02:58:04 |
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| 2024-12-25 02:56:50 |
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| 2024-12-12 02:59:59 |
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| 2024-11-28 14:31:52 |
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| 2024-11-21 21:31:16 |
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| 2024-11-20 02:54:09 |
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| 2024-11-14 02:54:17 |
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| 2024-11-09 02:54:35 |
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| 2024-10-26 02:51:59 |
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| 2024-10-25 02:53:54 |
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| 2024-10-23 02:53:13 |
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| 2024-10-03 02:48:53 |
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| 2024-10-02 02:47:16 |
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| 2024-09-15 02:45:18 |
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| 2024-09-12 02:44:49 |
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| 2024-09-03 21:28:18 |
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| 2024-08-26 21:28:20 |
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| 2024-08-22 02:44:30 |
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| 2024-08-02 13:53:27 |
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| 2024-08-02 01:34:21 |
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| 2024-03-12 13:42:14 |
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| 2024-02-02 02:50:17 |
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| 2024-02-01 12:31:25 |
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| 2024-01-12 00:27:53 |
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| 2023-12-29 02:39:03 |
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| 2023-11-22 02:36:56 |
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| 2023-10-29 09:27:43 |
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| 2023-10-20 09:27:57 |
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| 2023-10-11 02:32:01 |
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| 2023-09-29 13:30:00 |
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| 2023-09-19 09:27:50 |
|
| 2023-09-13 17:27:20 |
|
