CVE-2023-26083 identifies a memory leak vulnerability in the Arm Mali GPU Kernel Driver, impacting multiple drivers across various versions. This vulnerability allows a non-privileged user to perform valid GPU processing operations that may expose sensitive kernel metadata. The severity level is classified as low, with a CVSS score of 3.3, indicating that it poses a manageable risk. However, organizations should still recognize the potential implications on their systems and data security.
The vulnerability affects several Arm GPU Kernel Drivers, including the Midgard, Bifrost, Valhall, and Avalon drivers. The disclosed flaw enables unauthorized access to confidential kernel information, highlighting a critical area for organizations that utilize Arm GPUs. Given the nature of the vulnerability, it is essential for users and administrators to take immediate action to ensure the security of their systems.
Currently, there are no known exploits for this vulnerability, and it is not actively exploited in the wild, but organizations should still prioritize patching to prevent any potential misuse. The urgency for remediation is classified as critical due to the potential for data exposure and the low complexity of the attack, which could be executed with minimal privileges.
Organizations should prioritize patching immediately. Applying the necessary updates as per vendor guidance is crucial to mitigate the risks associated with this vulnerability. In the following sections, we will delve deeper into the vulnerability details, technical analysis, and recommended remediation strategies.
Vulnerability Details
The vulnerability described in CVE-2023-26083 involves a memory leak in the Mali GPU Kernel Driver. This affects the Midgard GPU Kernel Driver (all versions from r6p0 - r32p0), Bifrost GPU Kernel Driver (all versions from r0p0 - r42p0), Valhall GPU Kernel Driver (all versions from r19p0 - r42p0), and Avalon GPU Kernel Driver (all versions from r41p0 - r42p0). The leak allows non-privileged users to execute GPU processing operations that could disclose sensitive kernel metadata.
The vulnerability is classified under CWE-401, which pertains to memory leaks. It has a CVSS score of 3.3, indicating a low severity level, but organizations must understand that even low-severity vulnerabilities can lead to significant risks if not addressed properly.
The vulnerability was published on April 6, 2023, and has since been analyzed. Organizations should refer to the official guidance from Arm for potential mitigation strategies and patching information.
Technical Analysis
The root cause of CVE-2023-26083 is a memory management flaw within the Mali GPU Kernel Driver. This flaw allows non-privileged users to perform operations that leak sensitive data from the kernel. The attack vector is local, meaning that an attacker must have access to the system where the driver is running.
The attack complexity is low, requiring minimal privileges, which makes the vulnerability easier to exploit. User interaction is not required, as the issue can be triggered through legitimate GPU processing commands. The impacts are primarily on confidentiality, with low confidentiality impact, no impact on integrity, and no impact on availability.
Risk & Impact Analysis
The risk to organizations includes potential unauthorized access to sensitive kernel metadata. Although the severity is low, the implications of exposing kernel metadata could lead to further security concerns, especially if other vulnerabilities are present. Organizations should assess the risk associated with this memory leak in the context of their overall security posture.
Successful exploitation of this vulnerability could result in sensitive information disclosure, causing reputational damage and potential regulatory implications, depending on the nature of the exposed data. Organizations should also consider the broader impact on their infrastructure, as an exploited vulnerability can serve as a foothold for further attacks.
Given the CVSS score of 3.3 and the findings from the Known Exploited Vulnerabilities catalog, organizations should address this vulnerability in their priority patch cycle. The urgency for remediation is considered critical, and proactive measures should be taken to mitigate any risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions are affected by CVE-2023-26083:
1. Midgard GPU Kernel Driver (versions from r6p0 to r32p0) 2. Bifrost GPU Kernel Driver (versions from r0p0 to r42p0) 3. Valhall GPU Kernel Driver (versions from r19p0 to r42p0) 4. Avalon GPU Kernel Driver (versions from r41p0 to r42p0)
Mitigation & Remediation
To mitigate the risks associated with CVE-2023-26083, organizations should apply the latest patches provided by Arm for the affected GPU Kernel Drivers. Patching should be prioritized to prevent any data exposure resulting from this vulnerability.
If immediate patching is not feasible, organizations can consider implementing workarounds such as restricting access to systems utilizing the affected drivers, monitoring network traffic for unusual behavior, and configuring stricter permissions for user accounts that may interact with GPU processing.
For a comprehensive approach, organizations should engage in continuous security testing, including regular audits and assessments, to identify and remediate vulnerabilities promptly. For more information on security testing, organizations can refer to the penetration testing services provided by AppSecure.
Detection Guidance
Organizations should monitor for signs of exploitation of CVE-2023-26083 by looking for log indicators related to abnormal GPU processing operations. Behavioral anomalies in system performance or unauthorized access attempts should be flagged for further investigation.
Additionally, network signatures should be established to detect any unauthorized data exfiltration attempts. Security teams should also remain vigilant for changes to system configurations or unusual patterns in resource usage that may indicate exploitation.
AppSecure Threat Intelligence Insight
The significance of CVE-2023-26083 lies in its potential to expose sensitive kernel metadata, which could lead to further vulnerabilities if not addressed. This vulnerability represents a growing concern in the realm of GPU security, where attackers could leverage similar memory management flaws to gain unauthorized access to critical system components.
Organizations should take this opportunity to evaluate their security measures and consider implementing more robust memory management practices. Additionally, regular security assessments, including penetration testing methodologies, can help identify vulnerabilities before they can be exploited.
Moreover, leveraging threat intelligence can provide insights into emerging trends related to GPU vulnerabilities, ensuring organizations stay ahead of potential risks. Engaging in continuous monitoring and updating security protocols will be critical in mitigating the risks associated with vulnerabilities like CVE-2023-26083.
For more resources on vulnerability management and threat intelligence, organizations can explore additional content on the AppSecure blog, including guides on vulnerability management programs and security testing best practices to enhance their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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