CVE-2023-53456
Vulnerability Scoring
Analysis In Progress
CVE-2023-53456 Vulnerability Analysis & Exploit Details
CVE-2023-53456
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-2023-53456 Details
Status: Awaiting Analysis
Last updated: 🕖 02 Oct 2025, 19:12 UTC
Originally published on: 🕛 01 Oct 2025, 12:15 UTC
Time between publication and last update: 1 days
CVSS Release:
CVE-2023-53456 Vulnerability Summary
CVE-2023-53456: In the Linux kernel, the following vulnerability has been resolved: scsi: qla4xxx: Add length check when parsing nlattrs There are three places that qla4xxx parses nlattrs: - qla4xxx_set_chap_entry() - qla4xxx_iface_set_param() - qla4xxx_sysfs_ddb_set_param() and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data. Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.
Assessing the Risk of CVE-2023-53456
Access Complexity Graph
The exploitability of CVE-2023-53456 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-2023-53456
No exploitability data is available for CVE-2023-53456.
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-2023-53456, 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-2023-53456, 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-2023-53456 does not compromise confidentiality.
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Integrity:
None
CVE-2023-53456 does not impact data integrity.
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Availability:
None
CVE-2023-53456 does not affect system availability.
CVE-2023-53456 References
External References
- https://git.kernel.org/stable/c/25feffb3fbd51ae81d92c65cebc0e932663828b3
- https://git.kernel.org/stable/c/47cd3770e31df942e2bb925a9a855c79ed0662eb
- https://git.kernel.org/stable/c/47f3be62eab50b8cd7e1ae5fc2c4dae687497c34
- https://git.kernel.org/stable/c/4ed21975311247bb84e82298eeb359ec0a0fa84d
- https://git.kernel.org/stable/c/5925e224cc6edfef57b20447f18323208461309b
- https://git.kernel.org/stable/c/6d65079c69dc1feb817ed71f5bd15e83a7d6832d
- https://git.kernel.org/stable/c/b018c0440b871d8b001c996e95fa4538bd292de6
- https://git.kernel.org/stable/c/cfa6a1a79ed6d336fac7a5d87eb5471e4401829f
- https://git.kernel.org/stable/c/f61fc650c47849637fa1771a31a11674c824138a
CWE Common Weakness Enumeration
Unknown
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