CVE-2021-3838

Name	CVE-2021-3838
Description	Deserialization of Untrusted Data using PHAR deserialization
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3495-1, DLA-3495-2

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
php-dompdf (PTS)	buster	0.6.2+dfsg-3	vulnerable
	buster (security)	0.6.2+dfsg-3+deb10u2	fixed
	bullseye	0.6.2+dfsg-3.1	vulnerable
	bookworm	2.0.3+dfsg-1	fixed
	sid, trixie	2.0.3+dfsg-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
php-dompdf	source	buster	0.6.2+dfsg-3+deb10u2		DLA-3495-2
php-dompdf	source	(unstable)	2.0.2+dfsg-1

Notes

[bullseye] - php-dompdf <no-dsa> (Minor issue)
https://github.com/dompdf/dompdf/issues/2564
https://huntr.dev/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e
https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a (v2.0.0)