==========================================================================
Ubuntu Security Notice USN-6358-1
September 12, 2023

ruby-redcloth vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

RedCloth could be made to crash if it received specially crafted
input.

Software Description:
- ruby-redcloth: Textile module for Ruby

Details:

It was discovered that RedCloth incorrectly handled certain inputs during
html sanitisation. An attacker could possibly use this issue to cause a
denial of service.

Update instructions:

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

Ubuntu 23.04:
   ruby-redcloth                   4.3.2-4ubuntu0.23.04.1

Ubuntu 22.04 LTS:
   ruby-redcloth                   4.3.2-4ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   ruby-redcloth                   4.3.2-3+deb10u1build0.20.04.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   ruby-redcloth                   4.3.2-3ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   ruby-redcloth                   4.2.9-5ubuntu0.1~esm1

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

References:
   https://ubuntu.com/security/notices/USN-6358-1
   CVE-2023-31606

Package Information:
   https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-4ubuntu0.23.04.1
   https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-4ubuntu0.22.04.1
   https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-3+deb10u1build0.20.04.1

Ubuntu 6358-1: RedCloth vulnerability

September 13, 2023
RedCloth could be made to crash if it received specially crafted input.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: RedCloth could be made to crash if it received specially crafted input. Software Description: - ruby-redcloth: Textile module for Ruby Details: It was discovered that RedCloth incorrectly handled certain inputs during html sanitisation. An attacker could possibly use this issue to cause a denial of service.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: ruby-redcloth 4.3.2-4ubuntu0.23.04.1 Ubuntu 22.04 LTS: ruby-redcloth 4.3.2-4ubuntu0.22.04.1 Ubuntu 20.04 LTS: ruby-redcloth 4.3.2-3+deb10u1build0.20.04.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): ruby-redcloth 4.3.2-3ubuntu0.1~esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): ruby-redcloth 4.2.9-5ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6358-1

CVE-2023-31606

Severity
Ubuntu Security Notice USN-6358-1

Package Information

https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-4ubuntu0.23.04.1 https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-4ubuntu0.22.04.1 https://launchpad.net/ubuntu/+source/ruby-redcloth/4.3.2-3+deb10u1build0.20.04.1

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