CVE-2021-42528

Name	CVE-2021-42528
Description	XMP Toolkit 2021.07 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3585-1, DLA-4264-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
exempi (PTS)	bullseye	2.5.2-1	vulnerable
	bullseye (security)	2.5.2-1+deb11u1	fixed
	bookworm	2.6.3-1	fixed
	forky, sid, trixie	2.6.6-2	fixed

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

Package	Type	Release	Fixed Version	Origin
exempi	source	buster	2.5.0-2+deb10u1	DLA-3585-1
exempi	source	bullseye	2.5.2-1+deb11u1	DLA-4264-1
exempi	source	(unstable)	2.6.0-1

Notes

https://helpx.adobe.com/security/products/xmpcore/apsb21-108.html
https://github.com/adobe/XMP-Toolkit-SDK/commit/16e53564ae6c2689387479c04770f492075d5b7b (v2021.08)
https://cgit.freedesktop.org/exempi/commit/?h=adobe-sdk&id=16e53564ae6c2689387479c04770f492075d5b7b (2.6.0)