There is a NULL pointer dereference at function sixel_helper_set_additional_message (status.c) in libsixel 1.8.2 that will cause a denial of service.
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 |
|---|---|---|---|
| Libsixel | Libsixel_project | 1.8.2 (including) | 1.8.2 (including) |
| Libsixel | Ubuntu | bionic | * |
| Libsixel | Ubuntu | cosmic | * |
| Libsixel | Ubuntu | disco | * |
| Libsixel | Ubuntu | eoan | * |
| Libsixel | Ubuntu | esm-apps/bionic | * |
| Libsixel | Ubuntu | esm-apps/xenial | * |
| Libsixel | Ubuntu | upstream | * |
| Libsixel | Ubuntu | xenial | * |