Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. A crafted TIFF image could trigger excessive memory allocation during image decoding, allowing an authenticated user to cause the server process to crash. Users are recommended to upgrade to version 2.0.1, which fixes the issue.
https://lists.apache.org/thread/3sgpx4cwsgpnt66xv3cqvtc8z4st1kbq