UBUNTU-CVE-2023-31606

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    UBUNTU-CVE-2023-31606

    Published: 6 Jun 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-31606
    Aliases:
    USN-6358-1

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2023-31606, https://github.com/jgarber/redcloth, https://github.com/e23e/CVE-2023-31606#readme, https://github.com/jgarber/redcloth/issues/73, https://ubuntu.com/security/notices/USN-6358-1, https://www.cve.org/CVERecord?id=CVE-2023-31606

    Affected packages

    Package

    Name: ruby-redcloth

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.2.9-5ubuntu0.1~esm1

    Affected versions

    4.2.9-5build1
    4.2.9-5build2
    4.2.9-5build3
    4.2.9-5build4

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2023-31606 | CVE-DB