Null source pointer passed as an argument to memcpy() function within TIFFFetchStripThing() in tif_dirread.c in libtiff versions from 3.9.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, the fix is available with commit eecb0712.
| Software | From | Fixed in |
|---|---|---|
| libtiff / libtiff | 3.9.0 | 4.3.0.x |
| redhat / enterprise_linux | 8.0 | 8.0.x |
| fedoraproject / fedora | 35 | 35.x |
| debian / debian_linux | 9.0 | 9.0.x |
| debian / debian_linux | 10.0 | 10.0.x |
| debian / debian_linux | 11.0 | 11.0.x |