Linux Kernel Vulnerability in snd_compr_tstamp Function - CVE-2014-9892
Summary
DEBIAN-CVE-2014-9892: The snd_compr_tstamp function in sound/core/compress_offload.c in the Linux kernel through 4.7, as used in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not properly initialize a timestamp data structur... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is a core component of the Linux operating system, responsible for managing hardware and system resources. It provides essential services for all other software running on the system. The snd_compr_tstamp function, located in sound/core/compress_offload.c, is part of the audio subsystem, specifically handling compressed audio streams. This function is critical for ensuring proper audio playback and recording, but it has a vulnerability that can lead to sensitive information exposure.
Vulnerability Detail
The vulnerability identified as CVE-2014-9892 arises from improper initialization of a timestamp data structure within the snd_compr_tstamp function. This flaw exists in the Linux kernel versions up to 4.7 and affects Android devices prior to August 5, 2016, specifically Nexus 5 and 7 (2013) models. Attackers can exploit this vulnerability by crafting malicious applications that leverage this flaw to access sensitive information, potentially leading to data breaches and unauthorized access.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can limit the installation of untrusted applications from unknown sources on their Android devices. This can help mitigate the risk of exploitation until the kernel is updated. Additionally, users can monitor their systems for any unusual activity that may indicate an attempted exploitation of this vulnerability.
Conclusion
CVE-2014-9892 is a significant vulnerability in the Linux kernel that can lead to sensitive information exposure. Users are strongly advised to update their systems to patched versions of the kernel to mitigate the risk. Employing temporary workarounds can help reduce exposure until an update is applied.
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FAQ
CVE-2014-9892 is a vulnerability in the Linux kernel's snd_compr_tstamp function that can lead to sensitive information exposure due to improper initialization of a timestamp data structure.
The vulnerability affects Linux kernel versions up to 4.7 and specifically impacts Android devices, including Nexus 5 and 7 (2013) models, prior to August 5, 2016.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by CVE-2014-9892.
If an immediate update is not possible, limit the installation of untrusted applications and monitor your system for unusual activity as a temporary workaround.
Yes, the vulnerability has been patched in Linux kernel versions 4.8 and higher. It is crucial to update your kernel to a version that includes these patches.
References
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