Debian DLA-2813-1 : ckeditor - LTS security update

medium Nessus Plugin ID 155016

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-2813 advisory.

CKEditor, an open source WYSIWYG HTML editor with rich content support, which can be embedded into web pages, had two vulnerabilites as follows: CVE-2021-33829 A cross-site scripting (XSS) vulnerability in the HTML Data Processor in CKEditor 4 allows remote attackers to inject executable JavaScript code through a crafted comment because --!> is mishandled. CVE-2021-37695 A potential vulnerability has been discovered in CKEditor 4 Fake Objects package. The vulnerability allowed to inject malformed Fake Objects HTML, which could result in executing JavaScript code. For Debian 9 stretch, these problems have been fixed in version 4.5.7+dfsg-2+deb9u1. We recommend that you upgrade your ckeditor packages. For the detailed security status of ckeditor please refer to its security tracker page at: https://security- tracker.debian.org/tracker/ckeditor 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 these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the ckeditor packages.

For Debian 9 stretch, these problems have been fixed in version 4.5.7+dfsg-2+deb9u1.

Plugin Details

Severity: Medium

ID: 155016

File Name: debian_DLA-2813.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/10/2021

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2021-33829

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 6/9/2021

Reference Information

CVE: CVE-2021-33829, CVE-2021-37695

IAVA: 2021-A-0384-S

Detections

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