An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for NULL and the code does that. But, shortly thereafter, it calls SvOK(profile), causing a NULL pointer dereference.
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 |
|---|---|---|---|
| Dbi | Perl | * | 1.643 (excluding) |
| Libdbi-perl | Ubuntu | bionic | * |
| Libdbi-perl | Ubuntu | trusty | * |
| Libdbi-perl | Ubuntu | trusty/esm | * |
| Libdbi-perl | Ubuntu | upstream | * |
| Libdbi-perl | Ubuntu | xenial | * |