A flaw was found in htmldoc in v1.9.12 and before. Null pointer dereference in file_extension(),in file.c may lead to execute arbitrary code and denial of service.
The product dereferences a pointer that it expects to be valid but is NULL.
| Name | Vendor | Start Version | End Version | 
|---|---|---|---|
| Htmldoc | Htmldoc_project | * | 1.9.12 (including) | 
| Htmldoc | Ubuntu | esm-apps/focal | * | 
| Htmldoc | Ubuntu | esm-apps/xenial | * | 
| Htmldoc | Ubuntu | esm-infra-legacy/trusty | * | 
| Htmldoc | Ubuntu | focal | * | 
| Htmldoc | Ubuntu | groovy | * | 
| Htmldoc | Ubuntu | hirsute | * | 
| Htmldoc | Ubuntu | trusty | * | 
| Htmldoc | Ubuntu | trusty/esm | * | 
| Htmldoc | Ubuntu | upstream | * | 
| Htmldoc | Ubuntu | xenial | * |