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Debian 9 DLA-2813-1 Critical: CKEditor XSS Threat Update

debian lts
Calendar Grey November 9, 2021
Dist Debian Esm H88
Ubuntu LTS security bulletin USN-5490-1 regarding PHP highlights severe XSS vulnerabilities. Immediate update advised.
CKEditor, an open source WYSIWYG HTML editor with rich content support, which can be embedded into web pages, had two vulnerabilites as follows:
Topics%20covered

Topics Covered

security advisory critical XSS debian web application malicious code ckeditor

Summary

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/source-package/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


Severity
critical
Lowest
Low
Medium
High
Critical

Package: ckeditor
Version: 4.5.7+dfsg-2+deb9u1
CVE ID: CVE-2021-33829 CVE-2021-37695
Debian Bug: 992290

Topics%20covered

Topics Covered

security advisory critical XSS debian web application malicious code ckeditor

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