An issue was discovered in libcdtdttree.c in libcdt.a in graphviz 2.40.1. Stack consumption occurs because of recursive agclose calls in libcgraphgraph.c in libcgraph.a, related to agfstsubg in libcgraphsubg.c.
Weakness
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Graphviz | Graphviz | 2.40.1 (including) | 2.40.1 (including) |
| Graphviz | Ubuntu | bionic | * |
| Graphviz | Ubuntu | cosmic | * |
| Graphviz | Ubuntu | disco | * |
| Graphviz | Ubuntu | eoan | * |
| Graphviz | Ubuntu | focal | * |
| Graphviz | Ubuntu | groovy | * |
| Graphviz | Ubuntu | hirsute | * |
| Graphviz | Ubuntu | impish | * |
| Graphviz | Ubuntu | kinetic | * |
| Graphviz | Ubuntu | lunar | * |
| Graphviz | Ubuntu | mantic | * |
| Graphviz | Ubuntu | oracular | * |
| Graphviz | Ubuntu | plucky | * |
| Graphviz | Ubuntu | trusty | * |
| Graphviz | Ubuntu | trusty/esm | * |
| Graphviz | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
References
- https://gitlab.com/graphviz/graphviz/issues/1512
- https://research.loginsoft.com/bugs/stack-buffer-overflow-in-function-agclose-graphviz/
- https://security.gentoo.org/glsa/202107-04
- https://gitlab.com/graphviz/graphviz/issues/1512
- https://research.loginsoft.com/bugs/stack-buffer-overflow-in-function-agclose-graphviz/
- https://security.gentoo.org/glsa/202107-04