In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due to incorrect checks in libpkgconf/tuple.c:pkgconf_tuple_parse. For example, a .pc file containing a few hundred bytes can expand to one billion bytes.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pkgconf | Pkgconf | * | 1.9.3 (including) |
| Pkgconf | Ubuntu | bionic | * |
| Pkgconf | Ubuntu | kinetic | * |
| Pkgconf | Ubuntu | trusty | * |
| Pkgconf | Ubuntu | upstream | * |
| Pkgconf | Ubuntu | xenial | * |