CVE-2023-53515
Vulnerability Scoring
Analysis In Progress
CVE-2023-53515 Vulnerability Analysis & Exploit Details
CVE-2023-53515
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2023-53515 Details
Status: Received on 01 Oct 2025, 12:15 UTC
Published on: 01 Oct 2025, 12:15 UTC
CVSS Release:
CVE-2023-53515 Vulnerability Summary
CVE-2023-53515: In the Linux kernel, the following vulnerability has been resolved: virtio-mmio: don't break lifecycle of vm_dev vm_dev has a separate lifecycle because it has a 'struct device' embedded. Thus, having a release callback for it is correct. Allocating the vm_dev struct with devres totally breaks this protection, though. Instead of waiting for the vm_dev release callback, the memory is freed when the platform_device is removed. Resulting in a use-after-free when finally the callback is to be called. To easily see the problem, compile the kernel with CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs. The fix is easy, don't use devres in this case. Found during my research about object lifetime problems.
Assessing the Risk of CVE-2023-53515
Access Complexity Graph
The exploitability of CVE-2023-53515 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2023-53515
No exploitability data is available for CVE-2023-53515.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2023-53515, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2023-53515, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2023-53515 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53515 does not impact data integrity.
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Availability:
None
CVE-2023-53515 does not affect system availability.
CVE-2023-53515 References
External References
- https://git.kernel.org/stable/c/2dcb368fe5a8eee498ca75c93a18ce2f3b0d6a8e
- https://git.kernel.org/stable/c/3ff54d904fafabd0912796785e53cce4e69ca123
- https://git.kernel.org/stable/c/55c91fedd03d7b9cf0c5199b2eb12b9b8e95281a
- https://git.kernel.org/stable/c/5b7d5c2dd664eb8b9a06ecbc06e28d39359c422e
- https://git.kernel.org/stable/c/97a2d55ead76358245b446efd87818e919196d7a
- https://git.kernel.org/stable/c/af5818c35173e096085c6ae2e3aac605d3d15e41
- https://git.kernel.org/stable/c/b788ad3b2468512339c05f23692e36860264e674
CWE Common Weakness Enumeration
Unknown
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