ASoC Codecs va-macro: Array Out of Bounds Access Vulnerability
Summary
GSD-2022-1001567: ASoC: codecs: va-macro: fix accessing array out of bounds for enum type. Affects Kernel versions >= 908e6b1df26efc9d2df70c9a7bf4f5eae5c5702f, < 4a799972a283ab4ec031041304d7e2d34e1a16eb. No fix is published. How to fix ↓
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Background
ASoC (Audio System on Chip) is a subsystem in the Linux kernel that provides audio support for various hardware platforms. It includes codecs, which are responsible for encoding and decoding audio signals. The va-macro codec is one such component. It allows enumeration of different audio types and performs operations based on the selected type. However, a vulnerability has been discovered in the va-macro codec that allows accessing an array out of bounds for enum types.
Vulnerability Detail
The vulnerability in the va-macro codec arises due to improper bounds checking when accessing an array for enum types. An attacker could exploit this flaw by providing a malicious input that exceeds the bounds of the array, leading to memory corruption or arbitrary code execution. The impact of this vulnerability depends on the specific use case and the attacker's capabilities. It is crucial to address this issue to prevent potential security breaches and ensure the integrity of audio processing in affected systems.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The va-macro codec in the ASoC subsystem of the Linux kernel is vulnerable to an array out of bounds access issue. This vulnerability could be exploited to achieve memory corruption or arbitrary code execution. It is crucial to update the Linux kernel to version v5.16.19 or later, which includes a fix for this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
ASoC (Audio System on Chip) is a subsystem in the Linux kernel that provides audio support for various hardware platforms. It includes codecs responsible for encoding and decoding audio signals.
The va-macro codec is a component of ASoC that allows enumeration of different audio types and performs operations based on the selected type.
The impact of this vulnerability depends on the specific use case and the attacker's capabilities. It could lead to memory corruption or arbitrary code execution, potentially compromising the security and integrity of affected systems.
To fix this vulnerability, it is recommended to update the Linux kernel to version v5.16.19 or later, which includes a commit that addresses the issue. Users can obtain the updated kernel from the official Linux kernel repository.
For more details about this vulnerability, including the specific commits and affected versions, you can refer to the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001567.json.
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