Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title ruby-loofah security update
Name DSA-4171 First vendor Publication 2018-04-13
Vendor Debian Last vendor Modification 2018-04-13
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


The Shopify Application Security Team reported that ruby-loofah, a general library for manipulating and transforming HTML/XML documents and fragments, allows non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments. This might allow to mount a code injection attack into a browser consuming sanitized output.

For the stable distribution (stretch), this problem has been fixed in version 2.0.3-2+deb9u1.

We recommend that you upgrade your ruby-loofah packages.

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

Original Source

Url : http://www.debian.org/security/2018/dsa-4171

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-79 Failure to Preserve Web Page Structure ('Cross-site Scripting') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

Application 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2018-04-16 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4171.nasl - Type : ACT_GATHER_INFO
2018-03-27 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_81946ace69614488a16422d58ebc8d66.nasl - Type : ACT_GATHER_INFO
2018-03-21 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_ba6d0c9bf5f64b9ba6de3cce93c83220.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2018-04-24 17:21:31
  • Multiple Updates
2018-04-14 00:18:29
  • First insertion