0Xf00Sec

Name of the Vulnerable Software and Affected Versions: NeKernal versions prior to 0.0.3 Description: The issue is related to memory safety problems that can cause memory corruption, disk image corruption, denial of service, and potential code execution. These problems arise from unchecked memory operations, unsafe typecasting, and improper input validation. Recommendations: For versions prior to 0.0.3, update to version 0.0.3 to resolve the issue. As a temporary workaround, consider implementing additional input validation and memory operation checks to minimize the risk of exploitation. Restrict access to sensitive operations to prevent potential code execution until the update is applied.

**Name of the Vulnerable Software and Affected Versions** NeKernal version 0.0.2 **Description** NeKernal is a free and open-source operating system stack. It has a 1-byte heap overflow in the `rt copy memory` function, which unconditionally writes a null terminator at `dst[len]`. When `len` equals the size of the destination buffer, the extra write overruns the buffer by one byte. The issue was fixed in a commit without adding bounds checks or altering the function signature. **Recommendations** For NeKernal version 0.0.2, consider applying the patch from commit fb7b7f658327f659c6a6da1af151cb389c2ca4ee to remove the overflow-causing line in the `rt copy memory` function. As a temporary workaround, consider restricting the use of the `rt copy memory` function until the patch is applied.