The TIFFFetchNormalTag function in LibTiff 4.0.6 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by setting the tags TIFF_SETGET_C16ASCII or TIFF_SETGET_C32_ASCII to values that access 0-byte arrays. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9297.
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 | 4.0.6 (including) | 4.0.6 (including) |
| Opensuse | Opensuse | 13.2 (including) | 13.2 (including) |
| Tiff | Ubuntu | precise | * |
| Tiff | Ubuntu | precise/esm | * |
| Tiff | Ubuntu | trusty | * |
| Tiff | Ubuntu | upstream | * |
| Tiff | Ubuntu | vivid/stable-phone-overlay | * |
| Tiff | Ubuntu | wily | * |
| Tiff | Ubuntu | xenial | * |
| Tiff | Ubuntu | yakkety | * |