CVE-2024-56531
Vulnerability Scoring
Analysis In Progress
CVE-2024-56531 Vulnerability Analysis & Exploit Details
CVE-2024-56531
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-2024-56531 Details
Status: Received on 27 Dec 2024, 14:15 UTC
Published on: 27 Dec 2024, 14:15 UTC
CVSS Release:
CVE-2024-56531 Vulnerability Summary
CVE-2024-56531: In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close. This patch also splits the code to the disconnect and the free phases; the former is called immediately at the USB disconnect callback while the latter is called from the card destructor.
Assessing the Risk of CVE-2024-56531
Access Complexity Graph
The exploitability of CVE-2024-56531 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-2024-56531
No exploitability data is available for CVE-2024-56531.
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-2024-56531, 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-2024-56531, 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-2024-56531 does not compromise confidentiality.
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Integrity:
None
CVE-2024-56531 does not impact data integrity.
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Availability:
None
CVE-2024-56531 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: 0.044% (probability of exploit)
EPSS Percentile: 15.85%
(lower percentile = lower relative risk)
This vulnerability is less risky than approximately 84.15% of others.
CVE-2024-56531 References
External References
- https://git.kernel.org/stable/c/237f3faf0177bdde728fa3106d730d806436aa4d
- https://git.kernel.org/stable/c/3993edf44d3df7b6e8c753eac6ac8783473fcbab
- https://git.kernel.org/stable/c/4507a8b9b30344c5ddd8219945f446d47e966a6d
- https://git.kernel.org/stable/c/4dd821dcbfcecf7af6a08370b0b217cde2818acf
- https://git.kernel.org/stable/c/a3f9314752dbb6f6aa1f0f2b4c58243bda800738
- https://git.kernel.org/stable/c/b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c
- https://git.kernel.org/stable/c/cadf1d8e9ddcd74584ec961aeac14ac549b261d8
- https://git.kernel.org/stable/c/dd0de8cb708951cebf727aa045e8242ba651bb52
- https://git.kernel.org/stable/c/ebad462eec93b0f701dfe4de98990e7355283801
CWE Common Weakness Enumeration
Unknown
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