A sandbox information disclosure exists in Twig before 1.38.0 and 2.x before 2.7.0 because, under some circumstances, it is possible to call the __toString() method on an object even if not allowed by the security policy in place.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Twig | Symfony | * | 1.38.0 (excluding) |
| Twig | Symfony | 2.0.0 (including) | 2.7.0 (excluding) |
| Php-twig | Ubuntu | upstream | * |
| Twig | Ubuntu | bionic | * |
| Twig | Ubuntu | cosmic | * |
| Twig | Ubuntu | esm-apps/bionic | * |
| Twig | Ubuntu | esm-apps/xenial | * |
| Twig | Ubuntu | upstream | * |
| Twig | Ubuntu | xenial | * |
References
- https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
- https://seclists.org/bugtraq/2019/Mar/60
- https://symfony.com/blog/twig-sandbox-information-disclosure
- https://www.debian.org/security/2019/dsa-4419
- https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
- https://seclists.org/bugtraq/2019/Mar/60
- https://symfony.com/blog/twig-sandbox-information-disclosure
- https://www.debian.org/security/2019/dsa-4419