CVE-2023-53845
Vulnerability Scoring
Analysis In Progress
CVE-2023-53845 Vulnerability Analysis & Exploit Details
CVE-2023-53845
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-2023-53845 Details
Status: Awaiting Analysis
Published on: 09 Dec 2025, 16:17 UTC
CVSS Release:
CVE-2023-53845 Vulnerability Summary
CVE-2023-53845: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix infinite loop in nilfs_mdt_get_block() If the disk image that nilfs2 mounts is corrupted and a virtual block address obtained by block lookup for a metadata file is invalid, nilfs_bmap_lookup_at_level() may return the same internal return code as -ENOENT, meaning the block does not exist in the metadata file. This duplication of return codes confuses nilfs_mdt_get_block(), causing it to read and create a metadata block indefinitely. In particular, if this happens to the inode metadata file, ifile, semaphore i_rwsem can be left held, causing task hangs in lock_mount. Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block address translation failures with -ENOENT as metadata corruption instead of returning the error code.
Assessing the Risk of CVE-2023-53845
Access Complexity Graph
The exploitability of CVE-2023-53845 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-2023-53845
No exploitability data is available for CVE-2023-53845.
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-2023-53845, 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-2023-53845, 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-2023-53845 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53845 does not impact data integrity.
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Availability:
None
CVE-2023-53845 does not affect system availability.
CVE-2023-53845 References
External References
- https://git.kernel.org/stable/c/25457d07c8146e57d28906c663def033dc425af6
- https://git.kernel.org/stable/c/34c5f17222b50c79848bb03ec8811648813e6a45
- https://git.kernel.org/stable/c/5b29661669cb65b9750a3cf70ed3eaf947b92167
- https://git.kernel.org/stable/c/8a89d36a07afe1ed4564df51fefa2bb556c85412
- https://git.kernel.org/stable/c/8d07d9119642ba43d21f8ba64d51d01931096b20
- https://git.kernel.org/stable/c/a6a491c048882e7e424d407d32cba0b52d9ef2bf
- https://git.kernel.org/stable/c/cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2
- https://git.kernel.org/stable/c/d536f9976bb04e9c84cf80045a9355975e418f41
- https://git.kernel.org/stable/c/fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0
CWE Common Weakness Enumeration
Unknown
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