CVE-2024-50302 Linux Kernel Use of Uninitialized Resource

VE-2024-50302 is a critical security vulnerability identified in the Linux kernel’s Human Interface Device (HID) subsystem. This flaw stems from the use of uninitialized memory in the report buffer, potentially leading to kernel memory leaks when processing specially crafted HID reports. By exploiting this vulnerability, attackers can gain unauthorized access to sensitive kernel information, posing significant security risks. ​

What is Vulnerable to CVE-2024-50302

This vulnerability affects multiple versions of the Linux kernel, specifically:​

• Versions from 3.12 up to (but not including) 4.19.324​
• Versions from 4.20 up to (but not including) 5.4.286​
• Versions from 5.5 up to (but not including) 5.10.230​NIST NVD+1source.android.com+1
• Versions from 5.11 up to (but not including) 5.15.172​
• Versions from 5.16 up to (but not including) 6.1.117​
• Versions from 6.2 up to (but not including) 6.6.61​
• Versions from 6.7 up to (but not including) 6.11.8​NIST NVD
• Versions 6.12-rc1 through 6.12-rc6​

Systems running these kernel versions are susceptible to potential exploitation if the vulnerability is not addressed. ​

Mitigation and Remediation for CVE-2024-50302

To mitigate the risks associated with CVE-2024-50302, it is essential to apply the security patches provided by the Linux kernel maintainers. The vulnerability has been addressed by zero-initializing the report buffer during allocation, preventing the leakage of uninitialized kernel memory. Administrators should update their systems to the latest stable kernel versions that include this fix. For systems where immediate patching is not feasible, consider disabling USB HID devices as a temporary workaround until the patch can be applied. ​vulert.com

Impact of Successful Exploitation of CVE-2024-50302

Exploiting CVE-2024-50302 can lead to significant security implications, including:​

• Information Disclosure: Attackers can access uninitialized kernel memory, potentially exposing sensitive information.​
• Privilege Escalation: By leveraging the leaked information, attackers may escalate their privileges within the system.​gbhackers.com
• System Compromise: Combined with other vulnerabilities, this flaw could facilitate a complete system compromise.​

The severity of this vulnerability is underscored by its inclusion in the Known Exploited Vulnerabilities Catalog by the Cybersecurity and Infrastructure Security Agency (CISA), highlighting the necessity for prompt remediation. ​cisa.gov

Proof of Concept for CVE-2024-50302

As of now, there is no publicly available proof-of-concept (PoC) exploit for CVE-2024-50302. However, given the nature of the vulnerability and its potential impact, security researchers and organizations are advised to remain vigilant and monitor for any emerging threats related to this issue. Implementing the recommended patches and mitigation strategies is crucial to safeguard systems against potential exploitation.​

In conclusion, CVE-2024-50302 represents a serious vulnerability within the Linux kernel’s HID subsystem. Timely application of security patches and adherence to mitigation strategies are imperative to protect systems from potential attacks exploiting this flaw.