CVE-2023-53820
Vulnerability Scoring
Analysis In Progress
CVE-2023-53820 Vulnerability Analysis & Exploit Details
CVE-2023-53820
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-2023-53820 Details
Status: Awaiting Analysis
Last updated: 🕔 23 Dec 2025, 17:15 UTC
Originally published on: 🕓 09 Dec 2025, 16:17 UTC
Time between publication and last update: 14 days
CVSS Release:
CVE-2023-53820 Vulnerability Summary
CVE-2023-53820: In the Linux kernel, the following vulnerability has been resolved: loop: loop_set_status_from_info() check before assignment In loop_set_status_from_info(), lo->lo_offset and lo->lo_sizelimit should be checked before reassignment, because if an overflow error occurs, the original correct value will be changed to the wrong value, and it will not be changed back. More, the original patch did not solve the problem, the value was set and ioctl returned an error, but the subsequent io used the value in the loop driver, which still caused an alarm: loop_handle_cmd do_req_filebacked loff_t pos = ((loff_t) blk_rq_pos(rq) << 9) + lo->lo_offset; lo_rw_aio cmd->iocb.ki_pos = pos
Assessing the Risk of CVE-2023-53820
Access Complexity Graph
The exploitability of CVE-2023-53820 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-2023-53820
No exploitability data is available for CVE-2023-53820.
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-2023-53820, 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-2023-53820, 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-2023-53820 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53820 does not impact data integrity.
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Availability:
None
CVE-2023-53820 does not affect system availability.
CVE-2023-53820 References
External References
- https://git.kernel.org/stable/c/258809bf22bf71d53247856f374f2b1d055f2fd4
- https://git.kernel.org/stable/c/2ea7077748e5d7cc64f1c31342c802fe66ea7426
- https://git.kernel.org/stable/c/3e7d0968203d668af6036b9f9199c7b62c8a3581
- https://git.kernel.org/stable/c/4be26d553a3f1d4f54f25353d1496c562002126d
- https://git.kernel.org/stable/c/6bdf4e6dfb60cbb6121ccf027d97ed2ec97c0bcb
- https://git.kernel.org/stable/c/832580af82ace363205039a8e7c4ef04552ccc1a
- https://git.kernel.org/stable/c/861021710bba9dfa0749a3c209a6c1773208b1f1
- https://git.kernel.org/stable/c/9f6ad5d533d1c71e51bdd06a5712c4fbc8768dfa
- https://git.kernel.org/stable/c/c79a924ed6afac1708dfd370ba66bcf6a852ced6
CWE Common Weakness Enumeration
Unknown
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