Debian DSA-4171-1 : ruby-loofah - security update

medium Nessus Plugin ID 109046

Synopsis

The remote Debian host is missing a security-related update.

Description

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.

Solution

Upgrade the ruby-loofah packages.

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

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893596

https://security-tracker.debian.org/tracker/source-package/ruby-loofah

https://packages.debian.org/source/stretch/ruby-loofah

https://www.debian.org/security/2018/dsa-4171

Plugin Details

Severity: Medium

ID: 109046

File Name: debian_DSA-4171.nasl

Version: 1.5

Type: local

Agent: unix

Published: 4/16/2018

Updated: 11/13/2018

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Low

Score: 3

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:ruby-loofah, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 4/13/2018

Reference Information

CVE: CVE-2018-8048

DSA: 4171