Vulnerability in Kernel package: Input: sparcspkr - fix refcount leak in bbc_beep_probe
Summary
GSD-2022-1003329: Input: sparcspkr - fix refcount leak in bbc_beep_probe. Affects Kernel versions >= 9c1a5077fdca99356c891af37931e537dea874f5, < 418b6a3e12f75638abc5673eb76cb32127d0ab13. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system. It provides the core functionality and acts as an interface between the hardware and software layers. The sparcspkr module within the Kernel package is responsible for handling the system speaker on SPARC-based systems. It allows generating beeping sounds for various system events. However, a vulnerability has been discovered in the bbc_beep_probe function of the sparcspkr module, leading to a refcount leak. This vulnerability can potentially be exploited by attackers to cause a denial-of-service condition or execute arbitrary code.
Vulnerability Detail
The vulnerability originates from a refcount leak in the bbc_beep_probe function of the sparcspkr module. When this function is called, it fails to properly release the reference count, resulting in a resource leak. An attacker can potentially exploit this vulnerability by repeatedly triggering the bbc_beep_probe function, causing a depletion of system resources and leading to a denial-of-service condition. Additionally, if an attacker can control the parameters passed to the bbc_beep_probe function, they may be able to execute arbitrary code with elevated privileges.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, a vulnerability has been identified in the Kernel package, specifically in the sparcspkr module's bbc_beep_probe function. This vulnerability can result in a denial-of-service condition or enable arbitrary code execution. It is crucial to update the Kernel package to version v5.15.46 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially lead to a denial-of-service condition or allow attackers to execute arbitrary code with elevated privileges.
The vulnerability was introduced in version v2.6.26 of the Kernel package and persists until version v5.15.45.
There is no evidence of active exploitation of this vulnerability at the moment.
The recommended mitigation is to update the Kernel package to the fixed version (v5.15.46 or later).
You can find more information about this vulnerability in the GSD-2022-1003329 entry of the GSD database: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003329.json
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