Critical Buffer Index Check Vulnerability in Linux Package
Summary
DEBIAN-CVE-2024-50291: In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: add missing buffer index check dvb_vb2_expbuf() didn't check if the given buffer index was for a valid buffer. Affects linux versions < 6.11.9-1. Fixed in 6.11.9-1. How to fix ↓
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Background
The Linux package is a core component of the Debian operating system, providing essential functionalities for managing hardware and system resources. It serves as the foundation for running applications and services on Debian systems. The package is known for its stability and performance, but like any software, it can be susceptible to vulnerabilities that may compromise system security.
Vulnerability Detail
In the Linux kernel, a vulnerability was identified in the media subsystem, specifically within the dvb-core module. The function dvb_vb2_expbuf() failed to verify whether the provided buffer index corresponded to a valid buffer. This oversight could potentially allow an attacker to exploit the system, leading to unauthorized access or system crashes. The vulnerability has been assigned the identifier DEBIAN-CVE-2024-50291.
How To Fix
Minimum fixed version
6.11.9-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating to the fixed version.
Conclusion
The vulnerability identified as DEBIAN-CVE-2024-50291 in the Linux kernel poses a significant risk due to a missing buffer index check. Users are strongly advised to update their systems to the patched version 6.11.9-1 to mitigate potential threats. Regular monitoring for vulnerabilities using tools like Vulert can further enhance system security.
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FAQ
DEBIAN-CVE-2024-50291 is the identifier for a vulnerability in the Linux kernel related to a missing buffer index check in the dvb-core module.
This vulnerability could allow unauthorized access or cause system crashes, potentially compromising the integrity and availability of your system.
If you are using an affected version of the Linux package prior to 6.11.9-1, your system may be vulnerable. You can check your package version using the command: dpkg -l | grep linux.
The best way to protect your system is to update the Linux package to the fixed version 6.11.9-1 as soon as possible.
Yes, you can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software using just a manifest file. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
References
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