The heap-buffer-overflow is triggered in the strlen() function when handling the c_chars_to_str function in the dbn crate. This vulnerability occurs because the CStr::from_ptr() function in Rust assumes that the provided C string is null-terminated. However, there is no guarantee that the input chars array passed to the ccharsto_str function is properly null-terminated.
If the chars array does not contain a null byte (\0), strlen() will continue to read beyond the bounds of the buffer in search of a null terminator. This results in an out-of-bounds memory read and can lead to a heap-buffer-overflow, potentially causing memory corruption or exposing sensitive information.
{
"nvd_published_at": null,
"severity": "MODERATE",
"github_reviewed_at": "2024-10-09T14:34:24Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-126"
]
}