CVE-2024-43846
Mellanox Technologies MSN3700/VMOD0005 Linux Kernel lib objagg Vulnerability
Description
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: <TASK> 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 </TASK>
INFO
Published Date :
Aug. 17, 2024, 10:15 a.m.
Last Modified :
Oct. 25, 2024, 7:52 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-43846.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-43846 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-43846 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Oct. 25, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb No Types Assigned https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb Patch Changed Reference Type https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc No Types Assigned https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc Patch Changed Reference Type https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc No Types Assigned https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc Patch Changed Reference Type https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170 No Types Assigned https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170 Patch Changed Reference Type https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7 No Types Assigned https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7 Patch Changed Reference Type https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a No Types Assigned https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a Patch Changed Reference Type https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52abca1894d No Types Assigned https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52abca1894d Patch Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 6.1.103 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.3 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 19, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170 [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2024
Action Type Old Value New Value Added Description 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: <TASK> 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 </TASK> Added Reference kernel.org https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52abca1894d [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-43846 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-43846
weaknesses.