USN-5947-1: Twig vulnerabilities

Fabien Potencier discovered that Twig was not properly enforcing sandbox
policies when dealing with objects automatically cast to strings by PHP.
An attacker could possibly use this issue to expose sensitive information.
This issue was only fixed in Ubuntu 16.04 ESM and Ubuntu 18.04 ESM.
(CVE-2019-9942)

Marlon Starkloff discovered that Twig was not properly enforcing closure
constraints in some of its array filtering functions. An attacker could
possibly use this issue to execute arbitrary code. This issue was only
fixed …

array code constraints cve functions information issue php policies sandbox sensitive information strings ubuntu usn vulnerabilities