Executive Summary

Informations
Name CVE-2024-43846 First vendor Publication 2024-08-17
Vendor Cve Last vendor Modification 2024-10-25

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:

lib: objagg: Fix general protection fault

The library supports aggregation of objects into other objects only if the parent object does not have a parent itself. That is, nesting is not supported.

Aggregation happens in two cases: Without and with hints, where hints are a pre-computed recommendation on how to aggregate the provided objects.

Nesting is not possible in the first case due to a check that prevents it, but in the second case there is no check because the assumption is that nesting cannot happen when creating objects based on hints. The violation of this assumption leads to various warnings and eventually to a general protection fault [1].

Before fixing the root cause, error out when nesting happens and warn.

[1] general protection fault, probably for non-canonical address 0xdead000000000d90: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 1083 Comm: kworker/1:9 Tainted: G W 6.9.0-rc6-custom-gd9b4f1cca7fb #7 Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019 Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work RIP: 0010:mlxsw_sp_acl_erp_bf_insert+0x25/0x80 [...] Call Trace:

mlxsw_sp_acl_atcam_entry_add+0x256/0x3c0
mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0
mlxsw_sp_acl_tcam_vchunk_migrate_one+0x16b/0x270
mlxsw_sp_acl_tcam_vregion_rehash_work+0xbe/0x510
process_one_work+0x151/0x370
worker_thread+0x2cb/0x3e0
kthread+0xd0/0x100
ret_from_fork+0x34/0x50
ret_from_fork_asm+0x1a/0x30

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43846

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3645

Sources (Detail)

https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb
https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc
https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc
https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170
https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7
https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a
https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52abca1894d
Source Url

Alert History

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Date Informations
2025-01-08 03:04:33
  • Multiple Updates
2025-01-07 03:04:06
  • Multiple Updates
2024-12-25 03:02:44
  • Multiple Updates
2024-12-12 03:05:41
  • Multiple Updates
2024-11-23 03:02:43
  • Multiple Updates
2024-11-22 03:00:54
  • Multiple Updates
2024-11-20 02:59:14
  • Multiple Updates
2024-11-14 02:59:32
  • Multiple Updates
2024-11-09 02:59:33
  • Multiple Updates
2024-10-26 00:29:05
  • Multiple Updates
2024-08-19 13:27:29
  • Multiple Updates
2024-08-17 17:27:28
  • First insertion