CVE-2024-46675

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: core: Prevent USB core invalid event buffer address access This commit addresses an issue where the USB core could access an invalid event buffer address during runtime suspend, potentially causing SMMU faults and other memory issues in Exynos platforms. The problem arises from the following sequence. 1. In dwc3_gadget_suspend, there is a chance of a timeout when moving the USB core to the halt state after clearing the run/stop bit by software. 2. In dwc3_core_exit, the event buffer is cleared regardless of the USB core's status, which may lead to an SMMU faults and other memory issues. if the USB core tries to access the event buffer address. To prevent this hardware quirk on Exynos platforms, this commit ensures that the event buffer address is not cleared by software when the USB core is active during runtime suspend by checking its status before clearing the buffer address.

Gravité et risque d'exploitation

CVE-2024-46675 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.28 %, ce qui la place devant 19.1 % des CVE référencées.

Que faire ?

• Vérifiez si Linux (versions <=6.1.*, <14e497183df28c006603cc67fd3797a537eef7b9, 6.10.8, <eca3f543f817da87c00d1a5697b473efb548204f, 0, 6.1.108, <7bb11a75dd4d3612378b90e2a4aa49bdccea28ab, <e23f6ad8d110bf632f7471482e10b43dc174fb72, <2189fd13c577d7881f94affc09c950a795064c4b, <=5.10.*, <=6.6.*, <111277b881def3153335acfe0d1f43e6cd83ac93, 5.10.225, <=6.10.*, <=5.4.*, <=4.19.*, <d2afc2bffec77316b90d530b07695e3f534df914, 6.6.49, 4.19.321, 9f8a67b65a49d0e35c6ca782136c84541d948a64, <b72da4d89b97da71e056cc4d1429b2bc426a9c2f, 4.8, 6.11, <=*, <=5.15.*, <4.8, 5.4.283, 5.15.166) est présent sur votre parc.
• Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
• À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
• Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

• https://git.kernel.org/stable/c/eca3f543f817da87c00d1a5697b473efb548204f
• https://git.kernel.org/stable/c/d2afc2bffec77316b90d530b07695e3f534df914
• https://git.kernel.org/stable/c/b72da4d89b97da71e056cc4d1429b2bc426a9c2f
• https://git.kernel.org/stable/c/111277b881def3153335acfe0d1f43e6cd83ac93
• https://git.kernel.org/stable/c/2189fd13c577d7881f94affc09c950a795064c4b
• https://git.kernel.org/stable/c/7bb11a75dd4d3612378b90e2a4aa49bdccea28ab
• https://git.kernel.org/stable/c/e23f6ad8d110bf632f7471482e10b43dc174fb72
• https://git.kernel.org/stable/c/14e497183df28c006603cc67fd3797a537eef7b9