CVE-2022-49772
Vulnerability Scoring
Analysis In Progress
CVE-2022-49772 Vulnerability Analysis & Exploit Details
CVE-2022-49772
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-2022-49772 Details
Status: Awaiting Analysis
Last updated: 🕜 02 May 2025, 13:53 UTC
Originally published on: 🕒 01 May 2025, 15:16 UTC
CVSS Release:
CVE-2022-49772 Vulnerability Summary
CVE-2022-49772: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() snd_usbmidi_output_open() has a check of the NULL port with snd_BUG_ON(). snd_BUG_ON() was used as this shouldn't have happened, but in reality, the NULL port may be seen when the device gives an invalid endpoint setup at the descriptor, hence the driver skips the allocation. That is, the check itself is valid and snd_BUG_ON() should be dropped from there. Otherwise it's confusing as if it were a real bug, as recently syzbot stumbled on it.
Assessing the Risk of CVE-2022-49772
Access Complexity Graph
The exploitability of CVE-2022-49772 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-2022-49772
No exploitability data is available for CVE-2022-49772.
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-2022-49772, 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-2022-49772, 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-2022-49772 does not compromise confidentiality.
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Integrity:
None
CVE-2022-49772 does not impact data integrity.
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Availability:
None
CVE-2022-49772 does not affect system availability.
CVE-2022-49772 References
External References
- https://git.kernel.org/stable/c/00f5f1bbf815a39e9eecb468d12ca55d3360eb10
- https://git.kernel.org/stable/c/02b94885b2fdf1808b1874e009bfb90753f8f4db
- https://git.kernel.org/stable/c/368a01e5064c13946d032ab1d65ba95020a39cc5
- https://git.kernel.org/stable/c/872c9314769e89d8bda74ff3ac584756a45ee752
- https://git.kernel.org/stable/c/a80369c8ca50bc885d14386087a834659ec54a54
- https://git.kernel.org/stable/c/ad72c3c3f6eb81d2cb189ec71e888316adada5df
- https://git.kernel.org/stable/c/c43991065f36f7628cd124e037b8750c4617a7a7
- https://git.kernel.org/stable/c/e7dc436aea80308a9268e6d2d85f910ff107de9b
CWE Common Weakness Enumeration
Unknown
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