CVE-2024-53141 is a high-severity vulnerability affecting the Linux kernel. This vulnerability allows for potential issues in the handling of IP addresses in the netfilter subsystem. With a CVSS score of 7.8, it indicates a significant risk to organizations that utilize affected versions of the Linux kernel. The urgency to address this vulnerability is high, as exploitation could lead to unauthorized access or system instability.
The vulnerability arises from a missing range check in the bitmap_ip_uadt function within the netfilter framework. Specifically, when the attribute IPSET_ATTR_IP_TO is absent but IPSET_ATTR_CIDR is present, the values of ip and ip_to are incorrectly swapped, potentially leading to improper validation of IP ranges.
Organizations should prioritize patching immediately. The vulnerability has been addressed in updated versions of the Linux kernel, and those still running vulnerable versions should take action to mitigate risks.
Currently, no known exploits are available for this vulnerability, and it has not been classified as actively exploited in the wild. However, the potential impact is serious, and organizations must remain vigilant.
Vulnerability Details
The vulnerability, identified as CVE-2024-53141, was resolved in the Linux kernel. The description notes that a range check in the bitmap_ip_uadt function was missing. The CVSS score of 7.8 categorizes it as high severity, indicating a potential for significant impact on confidentiality, integrity, and availability.
Affected versions include the Linux kernel versions from 2.6.39 up to but not including 4.19.325, as well as versions starting from 4.20 up to 6.6.64, versions from 6.7 up to 6.11.11, and 6.12 versions prior to 6.12.2. The vulnerability was published on December 6, 2024.
Technical Analysis
The root cause of CVE-2024-53141 is a logic flaw in the range checking mechanism within the netfilter subsystem of the Linux kernel. The attack vector is local, requiring low privileges, and does not require user interaction. The attack complexity is also low, making it easier for an attacker to exploit this vulnerability if they have local access.
The impacts of this vulnerability are significant: confidentiality, integrity, and availability could all be compromised, potentially leading to unauthorized access or denial of service.
Risk & Impact Analysis
Risk to organizations includes potential data exposure and disruption of services. The blast radius can be extensive, especially in environments where the Linux kernel is heavily utilized. The CVSS score indicates high urgency, and organizations are advised to prioritize patching as soon as updates become available.
Given the nature of the vulnerability and its implications, it is critical for organizations to assess their current infrastructure and ensure that they are not running vulnerable versions of the Linux kernel. The urgency for remediation is high.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of the Linux kernel are affected: any version from 2.6.39 up to but not including 4.19.325, versions from 4.20 up to but not including 6.6.64, versions from 6.7 up to but not including 6.11.11, and versions from 6.12 up to but not including 6.12.2.
Mitigation & Remediation
To mitigate this vulnerability, organizations should ensure they are running the latest patched version of the Linux kernel. Patching is the primary method of remediation. Organizations may refer to the vendor's patch notes to identify the appropriate updates.
If immediate patching is not feasible, organizations should consider applying configuration hardening and network controls to limit access to potentially vulnerable systems. Continuous monitoring for unusual behavior can also help detect exploitation attempts.
Further information regarding patching and security practices can be found through resources such as penetration testing services.
Detection Guidance
To detect potential exploitation of CVE-2024-53141, organizations should monitor logs for indicators of unauthorized access attempts and unusual network behavior. Behavioral anomalies in systems running affected kernel versions may also signal exploitation.
AppSecure Threat Intelligence Insight
CVE-2024-53141 reflects ongoing trends in kernel-level vulnerabilities and highlights the importance of rigorous validation checks in software development. Organizations must learn from such vulnerabilities to enhance their security posture and prevent similar issues in the future.
This incident serves as a reminder that even minor coding oversights can lead to significant security risks. Security teams should consider reviewing their coding practices and integrating security checks into their development processes.
To further strengthen security measures, organizations may explore resources on penetration testing methodology and best practices in application security.
Organizations are encouraged to regularly review their security policies and implement continuous security testing to identify potential vulnerabilities proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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