NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.
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 |
|---|---|---|---|
| Graphviz | Graphviz | 2.40.1 (including) | 2.40.1 (including) |
| Graphviz | Ubuntu | artful | * |
| Graphviz | Ubuntu | bionic | * |
| Graphviz | Ubuntu | cosmic | * |
| Graphviz | Ubuntu | esm-apps/bionic | * |
| Graphviz | Ubuntu | esm-infra/xenial | * |
| Graphviz | Ubuntu | trusty | * |
| Graphviz | Ubuntu | trusty/esm | * |
| Graphviz | Ubuntu | upstream | * |
| Graphviz | Ubuntu | xenial | * |