CVE-2022-24729

Name	CVE-2022-24729
Description	CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. CKEditor4 prior to version 4.18.0 contains a vulnerability in the `dialog` plugin. The vulnerability allows abuse of a dialog input validator regular expression, which can cause a significant performance drop resulting in a browser tab freeze. A patch is available in version 4.18.0. There are currently no known workarounds.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ckeditor (PTS)	bullseye	4.16.0+dfsg-2	vulnerable
	bookworm	4.19.1+dfsg-1	fixed
	sid	4.22.1+dfsg1-2	fixed
ckeditor3 (PTS)	bookworm, bullseye	3.6.6.1+dfsg-7	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ckeditor	source	(unstable)	4.19.0+dfsg-1
ckeditor3	source	(unstable)	(not affected)

Notes

[bullseye] - ckeditor <no-dsa> (Minor issue)
[buster] - ckeditor <no-dsa> (Minor issue)
- ckeditor3 <not-affected> (Vulnerable code not present)
https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-f6rf-9m92-x2hh
https://github.com/ckeditor/ckeditor4/commit/8cff1e5aee3d766068792a374ba6b54a5cb92e2d (4.18.0)