Vulnerability in ASoC: ops: Reject out of bounds values in snd_soc_put_volsw_sx()
Summary
GSD-2022-1000110: ASoC: ops: Reject out of bounds values in snd_soc_put_volsw_sx(). Affects Kernel versions < 4977491e4b3aad8567f57e2a9992d251410c1db3. No fix is published. How to fix ↓
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Background
The ASoC (Audio System on Chip) is a subsystem in the Linux Kernel that provides support for audio devices integrated into system-on-chip (SoC) platforms. It enables the configuration and control of audio-related operations, such as volume control and audio routing. One of the key components in ASoC is the snd_soc_put_volsw_sx() function, which is responsible for handling volume control for audio devices. However, this function is vulnerable to out-of-bounds values, which can lead to potential security issues.
Vulnerability Detail
The vulnerability in snd_soc_put_volsw_sx() allows for the acceptance of out-of-bounds values, which can result in unexpected behavior and potential security risks. An attacker could exploit this vulnerability to manipulate volume settings beyond the intended range, potentially causing audio distortion or even triggering a denial-of-service condition. The vulnerability has been addressed in Linux Kernel version v4.14.265 by commit 4977491e4b3aad8567f57e2a9992d251410c1db3.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v4.14.265 or later. This can be done by applying the commit 4977491e4b3aad8567f57e2a9992d251410c1db3 to the kernel source code. Alternatively, users can upgrade to a Linux distribution that includes the fixed version of the kernel.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the vulnerability in ASoC's snd_soc_put_volsw_sx() function allows for the acceptance of out-of-bounds values, which can result in unexpected audio behavior and potential security risks. It is recommended to update the Linux Kernel to version v4.14.265 or later to mitigate this vulnerability. For further support on 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 support for audio devices integrated into system-on-chip (SoC) platforms. It enables the configuration and control of audio-related operations.
snd_soc_put_volsw_sx() is a function in ASoC that handles volume control for audio devices. It allows users to adjust the volume settings of audio outputs.
The vulnerability in snd_soc_put_volsw_sx() can lead to unexpected audio behavior, such as audio distortion. In some cases, it may also be possible for an attacker to trigger a denial-of-service condition.
Yes, this vulnerability has been fixed in Linux Kernel version v4.14.265 by commit 4977491e4b3aad8567f57e2a9992d251410c1db3.
To fix this vulnerability, you can update the Linux Kernel to version v4.14.265 or later. Apply the commit 4977491e4b3aad8567f57e2a9992d251410c1db3 to the kernel source code or upgrade to a Linux distribution that includes the fixed version of the kernel.
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