Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2024-46795 | First vendor Publication | 2024-09-18 |
| Vendor | Cve | Last vendor Modification | 2024-09-20 |
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: ksmbd: unset the binding mark of a reused connection Steve French reported null pointer dereference error from sha256 lib. cifs.ko can send session setup requests on reused connection. If reused connection is used for binding session, conn->binding can still remain true and generate_preauth_hash() will not set sess->Preauth_HashValue and it will be NULL. It is used as a material to create an encryption key in ksmbd_gen_smb311_encryptionkey. ->Preauth_HashValue cause null pointer dereference error from crypto_shash_update(). BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 8 PID: 429254 Comm: kworker/8:39 Hardware name: LENOVO 20MAS08500/20MAS08500, BIOS N2CET69W (1.52 ) Workqueue: ksmbd-io handle_ksmbd_work [ksmbd] RIP: 0010:lib_sha256_base_do_update.isra.0+0x11e/0x1d0 [sha256_ssse3] |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-46795 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-476 | NULL Pointer Dereference |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-03-29 03:40:40 |
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| 2025-03-28 13:45:04 |
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| 2025-03-28 03:18:45 |
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| 2025-03-19 03:14:05 |
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| 2025-03-18 03:27:01 |
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| 2025-03-14 03:14:18 |
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| 2025-03-06 14:10:50 |
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| 2025-02-22 03:24:24 |
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| 2025-01-08 03:05:24 |
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| 2025-01-07 03:04:57 |
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| 2024-12-25 03:03:35 |
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| 2024-12-12 03:06:32 |
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| 2024-11-23 03:03:29 |
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| 2024-11-22 03:01:38 |
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| 2024-11-20 02:59:58 |
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| 2024-11-14 03:00:17 |
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| 2024-11-09 03:00:17 |
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| 2024-10-26 02:57:39 |
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| 2024-10-25 02:59:32 |
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| 2024-10-23 02:58:43 |
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| 2024-10-03 02:53:52 |
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| 2024-10-02 02:52:14 |
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| 2024-09-21 05:27:33 |
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| 2024-09-20 17:27:28 |
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| 2024-09-18 13:27:29 |
|
