Description

CVE-2024-50210 is a vulnerability in the Linux kernel's posix-clock implementation. This vulnerability arises from unbalanced locking in the pc_clock_settime() function, specifically in the error handling path. The issue stems from the code failing to release the rwsem read lock and fput the clockid's fd in case of an error, leading to resource leaks and potential system instability.

The SVRS score for this vulnerability is 46, indicating a moderate risk. Although the CVSS score is 0, the SVRS score incorporates a broader range of intelligence factors, including threat actor activity and exploitation status.

Key Insights

1. Resource Leak: The unbalanced locking in the error path can lead to resource leaks. If the error condition is triggered frequently, it can deplete system resources, impacting performance and potentially causing crashes.
2. Potential for Privilege Escalation: While the vulnerability itself doesn't directly grant access to sensitive information, it could be exploited as a stepping stone by malicious actors to gain elevated privileges within the system.
3. Exploitation Potential: While there is currently no evidence of active exploitation in the wild, the vulnerability's nature makes it exploitable through targeted attacks. It's crucial to prioritize patching as a preventative measure.
4. Wide Impact: This vulnerability affects all Linux systems running kernels vulnerable to CVE-2024-50210. The widespread use of Linux in various environments necessitates immediate action to mitigate the risk.

Mitigation Strategies

1. Patching: Apply the latest kernel patch released by your distribution to address CVE-2024-50210. Patching is the most effective mitigation strategy, directly addressing the vulnerability.
2. System Hardening: Implement system hardening measures such as disabling unnecessary services, limiting user privileges, and enforcing access control policies to further reduce the attack surface and mitigate potential damage.
3. Regular Security Monitoring: Implement continuous security monitoring tools to detect any unusual activity on systems. Early detection can help identify potential exploitation attempts and enable swift response.
4. Security Awareness Training: Train users on best practices for security and educate them on the importance of promptly applying security updates and reporting suspicious activity.

Additional Information

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