In ncurses 6.1, there is a NULL pointer dereference at function _nc_parse_entry in parse_entry.c that will lead to a denial of service attack. The product proceeds to the dereference code path even after a dubious character `* in name or alias field detection.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ncurses | Gnu | 6.1 (including) | 6.1 (including) |
| Ncurses | Ubuntu | bionic | * |
| Ncurses | Ubuntu | esm-infra-legacy/trusty | * |
| Ncurses | Ubuntu | esm-infra/bionic | * |
| Ncurses | Ubuntu | esm-infra/xenial | * |
| Ncurses | Ubuntu | precise/esm | * |
| Ncurses | Ubuntu | trusty | * |
| Ncurses | Ubuntu | trusty/esm | * |
| Ncurses | Ubuntu | upstream | * |
| Ncurses | Ubuntu | xenial | * |