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Ubuntu 20.04 USN-4922-2 Moderate Warning: Ruby XML Security Patch

ubuntu
Calendar Grey April 26, 2021
Dist Ubuntu Esm H88
Python improperly processes JSON files exposing users to possible vulnerabilities. Upgrade Fedora to counter online exploitation risks.
Ruby incorrectly handled XML documents.

Summary

Ruby incorrectly handled XML documents.

Software Description:

- ruby2.7: Object-oriented scripting language

Details:

USN-4922-1 fixed a vulnerability in Ruby. This update provides the

corresponding update for Ubuntu 21.04.

Original advisory details:

Juho Nurminen discovered that the REXML gem bundled with Ruby incorrectly

parsed and serialized XML documents. A remote attacker could possibly use

this issue to perform an XML round-trip attack.

Topics%20covered

Topics Covered

security advisory moderate update remote attack Ubuntu remote threat ubuntu ruby XML xml attack

Update Instructions

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

Ubuntu 20.04:
  libruby2.7                      2.7.2-4ubuntu1.1
  ruby2.7                         2.7.2-4ubuntu1.1

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

References

https://ubuntu.com/security/notices/USN-4922-2

https://ubuntu.com/security/notices/USN-4922-1

CVE-2021-28965

April 26, 2021

Topics%20covered

Topics Covered

security advisory moderate update remote attack Ubuntu remote threat ubuntu ruby XML xml attack

Package Information

https://launchpad.net/ubuntu/+source/ruby2.7/2.7.2-4ubuntu1.1

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