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Ubuntu 22.04 LTS USN-5947-1 Moderate: Twig Code Execution Issues

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Calendar Grey March 13, 2023
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April 2023 Ubuntu Security Report USN-5950-1 highlights critical issues with Django affecting server-side applications, posing major security threats.
Several security issues were fixed in Twig.

Summary

Several security issues were fixed in Twig.

Software Description:

- php-twig: Flexible, fast, and secure template engine for PHP

- twig: Flexible, fast, and secure template engine for PHP

Details:

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 in Ubuntu 20.04 ESM. (CVE-2022-23614)

Dariusz Tytko discovered that Twig was not properly verifying input data

utilized when defining pathnames used to access files in a system. An

attacker could possibly use this issue to access unauthorized re...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate code execution ubuntu sensitive information twig php-twig

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS:
   php-twig                        3.3.8-2ubuntu4+esm1

Ubuntu 20.04 LTS:
   php-twig                        2.12.5-1ubuntu0.1~esm1

Ubuntu 18.04 LTS:
   php-twig                        2.4.6-1ubuntu0.1~esm1

Ubuntu 16.04 ESM:
   php-twig                        1.23.1-1ubuntu4+esm1

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-5947-1

  CVE-2019-9942, CVE-2022-23614, CVE-2022-39261

Severity
important
Lowest
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Critical

March 13, 2023

Topics%20covered

Topics Covered

security advisory moderate code execution ubuntu sensitive information twig php-twig

Package Information

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