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USN-7091-2: Ruby vulnerabilities

21 November 2024

Several security issues were fixed in Ruby.

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Releases

Packages

  • ruby2.7 - Object-oriented scripting language

Details

USN-7091-1 fixed several vulnerabilities in Ruby. This update provides the
corresponding update for ruby2.7 in Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that Ruby incorrectly handled parsing of an XML document
that has specific XML characters in an attribute value using REXML gem. An
attacker could use this issue to cause Ruby to crash, resulting in a
denial of service. This issue only affected in Ubuntu 22.04 LTS and Ubuntu
24.04 LTS. (CVE-2024-35176, CVE-2024-39908, CVE-2024-41123)

It was discovered that Ruby incorrectly handled parsing of an XML document
that has many entity expansions with SAX2 or pull parser API. An attacker
could use this issue to cause Ruby to crash, resulting in a denial of
service. (CVE-2024-41946)

It was discovered that Ruby incorrectly handled parsing of an XML document
that has many digits in a hex numeric character reference. An attacker
could use this issue to cause Ruby to crash, resulting in a denial of
service. (CVE-2024-49761)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 20.04

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

Related notices

  • USN-7091-1: ruby3.0-dev, libruby3.2, ruby3.3, ruby3.2, ruby3.3-doc, libruby3.0, ruby3.2-doc, libruby3.3, ruby3.2-dev, ruby3.3-dev, ruby3.0-doc, ruby3.0