CVE-2019-9942: Infoleak
First published: Tue Mar 12 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/twig/twig | <1.38.0>=2.0.0<2.7.0 | |
| composer/twig/twig | >=2.0.0<2.7.0 | 2.7.0 |
| composer/twig/twig | <1.38.0 | 1.38.0 |
| debian/twig | 2.6.2-2 2.6.2-2+deb10u1 | |
| Symfony Twig | <1.38.0 | |
| Symfony Twig | >=2.0.0<2.7.0 | |
| Debian Debian Linux | =9.0 | |
| <1.38.0 | ||
| >=2.0.0<2.7.0 | ||
| =9.0 |
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Reference Links
- https://symfony.com/blog/twig-sandbox-information-disclosure
- https://nvd.nist.gov/vuln/detail/CVE-2019-9942
- https://github.com/twigphp/Twig/commit/eac5422956e1dcca89a3669a03a3ff32f0502077
- https://github.com/FriendsOfPHP/security-advisories/blob/master/twig/twig/CVE-2019-9942.yaml
- https://seclists.org/bugtraq/2019/Mar/60
- https://www.debian.org/security/2019/dsa-4419
- https://github.com/advisories/GHSA-vxrc-68xx-x48g (Advisory)
- https://security-tracker.debian.org/tracker/CVE-2019-9942
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2019-9942.
What is the severity of CVE-2019-9942?
The severity of CVE-2019-9942 is medium with a severity value of 3.7.
What is the affected software for CVE-2019-9942?
The affected software for CVE-2019-9942 includes Twig before 1.38.0 and 2.x before 2.7.0.
How does the sandbox information disclosure vulnerability work?
Under some circumstances, it is possible to call the `__toString()` method on an object even if not allowed by the security policy in place, leading to information disclosure.
How can I fix the sandbox information disclosure vulnerability?
To fix the sandbox information disclosure vulnerability, update Twig to version 1.38.0 or 2.7.0 or later.
- collector/friends-of-php
- collector/github-advisory-latest
- alias/GHSA-vxrc-68xx-x48g
- alias/CVE-2019-9942
- collector/github-advisory
- collector/security-tracker-debian
- collector/nvd-index
- collector/nvd-cve
- agent/type
- agent/first-publish-date
- agent/remedy
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/weakness
- agent/severity
- agent/description
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/author
- agent/last-modified-date
- agent/softwarecombine
- agent/event
- agent/tags
- agent/trending
- package-manager/composer
- package-manager/debian
- vendor/symfony
- canonical/symfony twig
- version/symfony twig/2.0.0
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0