The igraph_i_strdiff function in igraph_trie.c in igraph through 0.7.1 has an NULL pointer dereference that allows attackers to cause a denial of service (application crash) via a crafted object.
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 |
|---|---|---|---|
| Igraph | Igraph | * | 0.7.1 (including) |
| Igraph | Ubuntu | bionic | * |
| Igraph | Ubuntu | cosmic | * |
| Igraph | Ubuntu | trusty | * |
| Igraph | Ubuntu | xenial | * |