CVE-2025-15273

Name	CVE-2025-15273
Description	FontForge PFB File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PFB files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28546.
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)
Debian Bugs	1124487

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
fontforge (PTS)	bullseye (security), bullseye	1:20201107~dfsg-4+deb11u1	vulnerable
	bookworm, bookworm (security)	1:20230101~dfsg-1.1~deb12u1	vulnerable
	trixie	1:20230101~dfsg-4	vulnerable
	forky, sid	1:20230101~dfsg-8	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
fontforge	source	(unstable)	(unfixed)			1124487

https://www.zerodayinitiative.com/advisories/ZDI-25-1191/