Debian Security Advisory

DLA-2282-1 rails -- LTS security update

Date Reported:
20 Jul 2020
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-8163, CVE-2020-8164, CVE-2020-8165.
More information:

Multiple vulnerabilities were found in Ruby on Rails, a MVC ruby-based framework geared for web application development, which could lead to remote code execution and untrusted user input usage, depending on the application.

  • CVE-2020-8163

    A code injection vulnerability in Rails would allow an attacker who controlled the `locals` argument of a `render` call to perform a RCE.

  • CVE-2020-8164

    A deserialization of untrusted data vulnerability exists in rails which can allow an attacker to supply information can be inadvertently leaked from Strong Parameters.

  • CVE-2020-8165

    A deserialization of untrusted data vulnernerability exists in rails that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE.

For Debian 9 stretch, these problems have been fixed in version 2:

We recommend that you upgrade your rails packages.

For the detailed security status of rails please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: