Buffer Overflow Vulnerability in media: firewire: firedtv-avc
Summary
UVI-2021-1002210: media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt(). Affects Kernel versions < cb667140875a3b1db92e4c50b4617a7cbf84659b. No fix is published. How to fix ↓
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Background
The media: firewire: firedtv-avc package is a component of the Linux Kernel, which is responsible for handling FireWire devices. FireWire is a high-speed serial bus interface commonly used for connecting devices such as cameras, external hard drives, and audio interfaces to a computer. The firedtv-avc module specifically deals with audio and video data transmission over FireWire. This package is vulnerable to a buffer overflow issue in the avc_ca_pmt() function.
Vulnerability Detail
The buffer overflow vulnerability in avc_ca_pmt() can be exploited by an attacker to overwrite adjacent memory locations, potentially leading to arbitrary code execution or a system crash. This vulnerability can be triggered when processing malformed data received from a FireWire device. An attacker with physical access to a vulnerable system or the ability to send malicious data to the system could exploit this vulnerability. The impact of this vulnerability may vary depending on the attacker's intentions and the system's configuration.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the official fix by updating the Linux Kernel to a patched version.
Conclusion
The buffer overflow vulnerability in media: firewire: firedtv-avc can potentially allow an attacker to execute arbitrary code or crash the system. It is crucial to update the Linux Kernel to version v5.15.1 or later to mitigate this vulnerability. No known workarounds exist, and it is recommended to apply the official fix as soon as possible. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability may vary depending on the attacker's intentions and the system's configuration. It could potentially lead to arbitrary code execution or a system crash.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will provide real-time monitoring and alerts for open-source vulnerabilities.
This vulnerability requires either physical access to a vulnerable system or the ability to send malicious data to the system. It cannot be exploited remotely over a network.
There are no known instances of this vulnerability being exploited in the wild at the time of this report. However, it is crucial to apply the fix promptly to mitigate the risk.
For further support on vulnerability remediation, you can contact info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
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