Null Pointer Dereference in Linux Kernel's IPU Bridge - CVE-2023-53336
Summary
CVE-2023-53336: In the Linux kernel, the following vulnerability has been resolved: media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings When ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() run sensor->a... Affects linux versions 6.1.106-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, providing essential services for hardware and software interaction. It manages system resources and enables communication between hardware and software applications. The kernel is crucial for system stability and security, making it a prime target for vulnerabilities. This specific vulnerability affects the IPU bridge component, which is responsible for handling image processing tasks in certain hardware configurations.
Vulnerability Detail
CVE-2023-53336 is a vulnerability in the Linux kernel that arises from a null pointer dereference in the IPU bridge's parsing functions. Specifically, when the functions ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() are executed, the sensor's adev (device) is not yet initialized. If the system encounters warnings about unknown values during these operations, it can lead to a null pointer dereference, potentially causing system crashes or instability. This vulnerability is critical as it can affect the reliability of systems relying on the IPU bridge for image processing.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. Users are advised to apply the patch as soon as it becomes available.
Conclusion
CVE-2023-53336 is a significant vulnerability in the Linux kernel's IPU bridge component that can lead to system instability. Users are encouraged to update their systems to the patched version as soon as possible to mitigate risks. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
CVE-2023-53336 is a vulnerability in the Linux kernel that can lead to a null pointer dereference in the IPU bridge component.
This vulnerability can cause system crashes or instability when the IPU bridge encounters unknown values during image processing tasks.
Yes, a patch is available for Debian 13 and 14 in version 6.5.3-1. Users should update their kernel to this version.
If you cannot update your kernel, monitor for updates from the Debian security team and consider using Vulert to check for vulnerabilities in your application.
You can use Vulert, which allows you to monitor and alert for open-source vulnerabilities in real-time using just a manifest file like package-lock.json. Visit Vulert Scanner to check your application without signing up.
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