ALSA-2023:3847 - Moderate: kernel security, bug fix, and enhancement update
Summary
ALSA-2023:3847: Moderate: kernel security, bug fix, and enhancement update. Affects bpftool versions < 4.18.0-477.15.1.el8_8. Fixed in 4.18.0-477.15.1.el8_8. How to fix ↓
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Background
The kernel is the core component of the Linux operating system. It provides essential functionality and interfaces for other software components to interact with the hardware. The kernel packages contain the Linux kernel and are crucial for the proper functioning of any Linux-based system.
Vulnerability Detail
This vulnerability, identified as CVE-2023-28466, is a race condition in the do_tls_getsockopt function of the kernel. It can lead to a use-after-free or NULL pointer dereference. Attackers may exploit this vulnerability to execute arbitrary code or cause a denial of service. The impact of this vulnerability is considered moderate.
How To Fix
Minimum fixed version
4.18.0-477.15.1.el8_8
This is the first release that contains the fix.
sudo dnf update bpftoolTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. It is advised to apply the recommended fix by updating the kernel packages.
Conclusion
In conclusion, it is crucial to update the affected kernel packages to address the identified vulnerability. This update includes the necessary security fixes, bug fixes, and enhancements to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for bpftool →
FAQ
The kernel is the core component of the Linux operating system. It provides essential functionality and interfaces for other software components to interact with the hardware.
A race condition is a situation where the behavior of a system depends on the relative timing of events, which can lead to unexpected and potentially harmful outcomes.
A use-after-free vulnerability occurs when a program continues to use a memory region after it has been freed, leading to potential memory corruption and exploitation.
A NULL pointer dereference occurs when a program attempts to access or manipulate data using a null pointer, leading to a crash or potential code execution.
The impact of this vulnerability is considered moderate. Attackers may exploit it to execute arbitrary code or cause a denial of service.
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