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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2023-31606)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2023-31606)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202401-14 (RedCloth: ReDoS Vulnerability)

  - 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. (CVE-2023-31606)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 host has a package installed that is affected by a vulnerability as referenced in the USN-6358-1 advisory.

    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.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has a package installed that is affected by a vulnerability as referenced in the dla-3480 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3480-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                   Bastien Roucaris     July 06, 2023                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : ruby-redcloth     Version        : 4.3.2-3+deb10u1     CVE ID         : CVE-2023-31606     Debian Bug     : 1040488

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

    For Debian 10 buster, this problem has been fixed in version     4.3.2-3+deb10u1.

    We recommend that you upgrade your ruby-redcloth packages.

    For the detailed security status of ruby-redcloth please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/ruby-redcloth

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
421677	SCA: security update for RedCloth (GHSA-qcm3-vfq5-wfr2)	Tenable Cloud Security	SCA Checks	high
421677	SCA: security update for RedCloth (GHSA-qcm3-vfq5-wfr2)	Tenable Self-Hosted Container Security	SCA Checks	high
226150	Linux Distros Unpatched Vulnerability : CVE-2023-31606	Nessus	Misc.	high
187861	GLSA-202401-14 : RedCloth: ReDoS Vulnerability	Nessus	Gentoo Local Security Checks	high
181318	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 : RedCloth vulnerability (USN-6358-1)	Nessus	Ubuntu Local Security Checks	high
178396	Debian dla-3480 : ruby-redcloth - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2023-31606

high

Tenable Plugins

high

high

high

high

high

high