Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2024-46847 | First vendor Publication | 2024-09-27 |
| Vendor | Cve | Last vendor Modification | 2024-10-02 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 5.5 | ||
| Base Score | 5.5 | Environmental Score | 5.5 |
| impact SubScore | 3.6 | Temporal Score | 5.5 |
| Exploitabality Sub Score | 1.8 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| 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: mm: vmalloc: ensure vmap_block is initialised before adding to queue Commit 8c61291fd850 ("mm: fix incorrect vbq reference in purge_fragmented_block") extended the 'vmap_block' structure to contain a 'cpu' field which is set at allocation time to the id of the initialising CPU. When a new 'vmap_block' is being instantiated by new_vmap_block(), the partially initialised structure is added to the local 'vmap_block_queue' xarray before the 'cpu' field has been initialised. If another CPU is concurrently walking the xarray (e.g. via vm_unmap_aliases()), then it may perform an out-of-bounds access to the remote queue thanks to an uninitialised index. This has been observed as UBSAN errors in Android: | Internal error: UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP Move the initialisation of 'vb->cpu' in new_vmap_block() ahead of the addition to the xarray. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-46847 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-129 | Improper Validation of Array Index |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-03-29 03:40:50 |
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| 2025-03-28 13:45:12 |
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| 2025-03-28 03:18:53 |
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| 2025-03-19 03:14:12 |
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| 2025-03-18 03:27:09 |
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| 2025-03-14 03:14:26 |
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| 2025-03-06 14:10:58 |
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| 2025-02-22 03:24:32 |
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| 2025-01-08 03:05:32 |
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| 2025-01-07 03:05:05 |
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| 2024-12-25 03:03:43 |
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| 2024-12-12 03:06:39 |
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| 2024-11-23 03:03:35 |
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| 2024-11-22 03:01:45 |
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| 2024-11-20 03:00:04 |
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| 2024-11-14 03:00:22 |
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| 2024-11-09 03:00:23 |
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| 2024-10-26 02:57:45 |
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| 2024-10-25 02:59:37 |
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| 2024-10-23 02:58:50 |
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| 2024-10-02 21:27:29 |
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| 2024-09-30 17:27:26 |
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| 2024-09-27 17:27:23 |
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