CVE-2022-49478
Vulnerability Scoring
Analysis In Progress
CVE-2022-49478 Vulnerability Analysis & Exploit Details
CVE-2022-49478
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-2022-49478 Details
Status: Received on 26 Feb 2025, 07:01 UTC
Published on: 26 Feb 2025, 07:01 UTC
CVSS Release:
CVE-2022-49478 Vulnerability Summary
CVE-2022-49478: In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init Syzbot reported that -1 is used as array index. The problem was in missing validation check. hdw->unit_number is initialized with -1 and then if init table walk fails this value remains unchanged. Since code blindly uses this member for array indexing adding sanity check is the easiest fix for that. hdw->workpoll initialization moved upper to prevent warning in __flush_work.
Assessing the Risk of CVE-2022-49478
Access Complexity Graph
The exploitability of CVE-2022-49478 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-2022-49478
No exploitability data is available for CVE-2022-49478.
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-2022-49478, 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-2022-49478, 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-2022-49478 does not compromise confidentiality.
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Integrity:
None
CVE-2022-49478 does not impact data integrity.
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Availability:
None
CVE-2022-49478 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-2022-49478 References
External References
- https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827
- https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e
- https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e
- https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a
- https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
- https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059
- https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9
- https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7
- https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
CWE Common Weakness Enumeration
Unknown
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