Null source pointer passed as an argument to memcpy() function within TIFFReadDirectory() in tif_dirread.c in libtiff versions from 4.0 to 4.3.0 could lead to Denial of Service via crafted TIFF file. For users that compile libtiff from sources, a fix is available with commit 561599c.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libtiff | Libtiff | 4.0.0 (including) | 4.3.0 (including) |
| Red Hat Enterprise Linux 8 | RedHat | libtiff-0:4.0.9-23.el8 | * |
| Red Hat Enterprise Linux 9 | RedHat | libtiff-0:4.4.0-2.el9 | * |
| Tiff | Ubuntu | bionic | * |
| Tiff | Ubuntu | esm-infra/xenial | * |
| Tiff | Ubuntu | focal | * |
| Tiff | Ubuntu | impish | * |
| Tiff | Ubuntu | trusty | * |
| Tiff | Ubuntu | trusty/esm | * |
| Tiff | Ubuntu | upstream | * |
| Tiff | Ubuntu | xenial | * |