UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.
| Software | From | Fixed in |
|---|---|---|
| ultrajson_project / ultrajson | - | 5.2.0 |
| debian / debian_linux | 9.0 | 9.0.x |
| fedoraproject / fedora | 35 | 35.x |
| fedoraproject / fedora | 36 | 36.x |
| fedoraproject / fedora | 37 | 37.x |
ujson
|
1.34 | 5.2.0 |