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CVE-2023-31606

Published: 6 June 2023

A Regular Expression Denial of Service (ReDoS) issue was discovered in the sanitize_html function of redcloth gem v4.0.0. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ruby-redcloth
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needed)
upstream
Released (4.3.2-3+deb10u1)
focal
Released (4.3.2-3+deb10u1build0.20.04.1)
jammy
Released (4.3.2-4ubuntu0.22.04.1)
lunar
Released (4.3.2-4ubuntu0.23.04.1)
xenial
Released (4.2.9-5ubuntu0.1~esm1)
Available with Ubuntu Pro
bionic
Released (4.3.2-3ubuntu0.1~esm1)
Available with Ubuntu Pro
trusty Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H