CVE-2024-50127
Netgear Linux Kernel Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing.
INFO
Published Date :
Nov. 5, 2024, 6:15 p.m.
Last Modified :
Nov. 8, 2024, 7:42 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2024-50127.
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-2024-50127 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50127 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]
Nov. 08, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61 No Types Assigned https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61 Patch Changed Reference Type https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f No Types Assigned https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f Patch Changed Reference Type https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3 No Types Assigned https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3 Patch Changed Reference Type https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f No Types Assigned https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f Patch Changed Reference Type https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6 No Types Assigned https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6 Patch Changed Reference Type https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b No Types Assigned https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b Patch Changed Reference Type https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301 No Types Assigned https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301 Patch Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.15.170 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.115 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.59 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.6 *cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 08, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing. Added Reference kernel.org https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b [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-2024-50127 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-2024-50127
weaknesses.