Null Pointer Dereference in Linux Kernel's IPU Bridge - CVE-2023-53336
Summary
DEBIAN-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 < 6.5.3-1. Fixed in 6.5.3-1. How to fix ↓
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Background
The Linux kernel is the core component of many operating systems, providing the essential interface between hardware and software. It is responsible for managing system resources and facilitating communication between hardware components and applications. This vulnerability affects the Linux kernel versions in Debian 13 and 14, specifically related to the ipu-bridge functionality, which is responsible for handling image processing unit (IPU) tasks.
Vulnerability Detail
In the Linux kernel, a vulnerability has been identified in the ipu-bridge component, where the functions ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() can lead to a null pointer dereference. This occurs because the sensor's device attribute (sensor->adev) is not set at the time these functions are executed. If the dev_warn() calls regarding unknown values are triggered, it results in a NULL pointer dereference, potentially causing system instability or crashes.
How To Fix
Minimum fixed version
6.5.3-1
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. It is recommended to apply the patch as soon as it is available.
Conclusion
The vulnerability CVE-2023-53336 in the Linux kernel's ipu-bridge component poses a risk of null pointer dereference, which can lead to system instability. It is essential to update to the patched version 6.5.3-1 to secure your system against this issue.
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FAQ
CVE-2023-53336 is a vulnerability in the Linux kernel related to null pointer dereference in the ipu-bridge component.
The vulnerability affects the Linux kernel versions in Debian 13 and 14 prior to the patch version 6.5.3-1.
Exploitation of this vulnerability could lead to system crashes or instability due to null pointer dereference.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring signup.
While there are no specific workarounds, it is crucial to plan for an update as soon as possible to mitigate potential risks.
References
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