CVE-2025-7519

Name	CVE-2025-7519
Description	A flaw was found in polkit. When processing an XML policy with 32 or more nested elements in depth, an out-of-bounds write can be triggered. This issue can lead to a crash or other unexpected behavior, and arbitrary code execution is not discarded. To exploit this flaw, a high-privilege account is needed as it's required to place the malicious policy file properly.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1109334

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
policykit-1 (PTS)	bullseye (security), bullseye	0.105-31+deb11u1	vulnerable
	bookworm	122-3	vulnerable
	trixie, sid	126-2	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
policykit-1	source	(unstable)	(unfixed)			1109334

Notes

[bookworm] - policykit-1 <no-dsa> (Minor issue; need high privilege account to place malicious policy file)
https://bugzilla.redhat.com/show_bug.cgi?id=2379675
Fixed by: https://github.com/polkit-org/polkit/commit/107d3801361b9f9084f78710178e683391f1d245