A ruby-redcloth security update has been released for Debian GNU/Linux 10 LTS to address a Regular Expression Denial of Service (ReDoS) issue.

[SECURITY] [DLA 3480-1] ruby-redcloth security update

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