CVE-2023-52685
Vulnerability Scoring
Analysis In Progress
CVE-2023-52685
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-2023-52685 Details
Status: Awaiting Analysis
Published on: 17 May 2024, 15:15 UTC
CVSS Release:
CVE-2023-52685 Vulnerability Summary
CVE-2023-52685: In the Linux kernel, the following vulnerability has been resolved: pstore: ram_core: fix possible overflow in persistent_ram_init_ecc() In persistent_ram_init_ecc(), on 64-bit arches DIV_ROUND_UP() will return 64-bit value since persistent_ram_zone::buffer_size has type size_t which is derived from the 64-bit *unsigned long*, while the ecc_blocks variable this value gets assigned to has (always 32-bit) *int* type. Even if that value fits into *int* type, an overflow is still possible when calculating the size_t typed ecc_total variable further below since there's no cast to any 64-bit type before multiplication. Declaring the ecc_blocks variable as *size_t* should fix this mess... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
Assessing the Risk of CVE-2023-52685
Access Complexity Graph
The exploitability of CVE-2023-52685 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-2023-52685
No exploitability data is available for CVE-2023-52685.
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-2023-52685, 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-2023-52685, 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-2023-52685 does not compromise confidentiality.
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Integrity:
None
CVE-2023-52685 does not impact data integrity.
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Availability:
None
CVE-2023-52685 does not affect system availability.
Exploit Prediction Scoring System (EPSS)
The EPSS score estimates the probability that this vulnerability will be exploited in the near future.
EPSS Score: 0.043% (probability of exploit)
EPSS Percentile: 11.87%
(lower percentile = lower relative risk)
This vulnerability is less risky than approximately 88.13% of others.
CVE-2023-52685 References
External References
- https://git.kernel.org/stable/c/3b333cded94fbe5ce30d699b316c4715151268ae
- https://git.kernel.org/stable/c/48dcfc42ce705b652c0619cb99846afc43029de9
- https://git.kernel.org/stable/c/86222a8fc16ec517de8da2604d904c9df3a08e5d
- https://git.kernel.org/stable/c/8fb12524c86bdd542a54857d5d076b1b6778c78c
- https://git.kernel.org/stable/c/a34946ec3de88a16cc3a87fdab50aad06255a22b
- https://git.kernel.org/stable/c/acd413da3e1f37582207cd6078a41d57c9011918
- https://git.kernel.org/stable/c/d1fe1aede684bd014714dacfdc75586a9ad38657
- https://git.kernel.org/stable/c/f9b891a7e8fcf83901f8507241e23e7420103b61
CWE Common Weakness Enumeration
Unknown
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