Null Pointer Dereference in rtc: pl031
Summary
GSD-2022-1001305: rtc: pl031: fix rtc features null pointer dereference. Affects Kernel versions >= d9b0dd54a1943f47a381a474f8ea2c94466110c0, < 1b915703964f7e636961df04c540261dc55c6c70. No fix is published. How to fix ↓
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Background
The rtc: pl031 vulnerability affects the Kernel package in the Linux ecosystem. The Kernel package is responsible for managing the core functionality of the operating system. The rtc: pl031 module is a real-time clock driver used in various embedded systems. It provides access to the hardware real-time clock (RTC) and supports features like alarm interrupts and periodic timer interrupts. However, a null pointer dereference vulnerability has been discovered in the rtc: pl031 module, which can lead to system crashes or potential exploitation by attackers.
Vulnerability Detail
The null pointer dereference vulnerability in rtc: pl031 occurs when a null pointer is accessed in the code, leading to a crash or potential security issues. This vulnerability was introduced in version v5.12 of the Linux Kernel and has been fixed in version v5.17.2. Attackers may be able to exploit this vulnerability to cause denial of service or execute arbitrary code. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
The rtc: pl031 null pointer dereference vulnerability in the Kernel package can lead to system crashes or potential exploitation by attackers. It is recommended to update to version v5.17.2 or later of the Linux Kernel to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can range from system crashes to potential exploitation by attackers. However, the actual impact and attack plausibility have not been proven yet.
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 to the playground, and it will provide real-time monitoring and alerts for open-source vulnerabilities.
Yes, a patch for the rtc: pl031 null pointer dereference vulnerability is available in version v5.17.2 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
The remote exploitability of this vulnerability has not been determined yet. However, it is always recommended to apply security patches and updates to mitigate potential risks.
You can find more information about this vulnerability in the Open Source Vulnerability database maintained by the Cloud Security Alliance. The specific vulnerability ID is GSD-2022-1001305. The source link is available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001305.json
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