Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-46993 | First vendor Publication | 2024-02-28 |
| Vendor | Cve | Last vendor Modification | 2024-12-24 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 7.1 | ||
| Base Score | 7.1 | Environmental Score | 7.1 |
| impact SubScore | 5.2 | Temporal Score | 7.1 |
| Exploitabality Sub Score | 1.8 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | None | 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
| In the Linux kernel, the following vulnerability has been resolved: sched: Fix out-of-bound access in uclamp Util-clamp places tasks in different buckets based on their clamp values for performance reasons. However, the size of buckets is currently computed using a rounding division, which can lead to an off-by-one error in some configurations. For instance, with 20 buckets, the bucket size will be 1024/20=51. A task with a clamp of 1024 will be mapped to bucket id 1024/51=20. Sadly, correct indexes are in range [0,19], hence leading to an out of bound memory access. Clamp the bucket id to fix the issue. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46993 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-125 | Out-of-bounds Read |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-07-15 01:52:43 |
|
| 2025-07-14 12:16:20 |
|
| 2025-06-26 01:51:34 |
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| 2025-06-25 12:15:48 |
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| 2025-06-24 01:56:02 |
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| 2025-03-29 02:57:01 |
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| 2025-03-28 13:27:23 |
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| 2025-03-28 02:41:59 |
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| 2025-03-18 02:49:50 |
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| 2025-03-14 02:39:54 |
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| 2025-01-08 02:34:44 |
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| 2025-01-07 02:34:21 |
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| 2024-12-24 17:20:51 |
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| 2024-11-25 09:26:41 |
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| 2024-02-28 17:27:37 |
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| 2024-02-28 13:27:31 |
|
