CVE-2025-43718

Name	CVE-2025-43718
Description	Poppler 24.06.1 through 25.x before 25.04.0 allows stack consumption and a SIGSEGV via deeply nested structures within the metadata (such as GTS_PDFEVersion) of a PDF document, e.g., a regular expression for a long pdfsubver string. This occurs in Dict::lookup, Catalog::getMetadata, and associated functions in PDFDoc, with deep recursion in the regex executor (std::__detail::_Executor).
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)
References	DSA-6334-1
Debian Bugs	1117046

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
poppler (PTS)	bullseye	20.09.0-3.1+deb11u1	vulnerable
	bullseye (security)	20.09.0-3.1+deb11u2	vulnerable
	bookworm	22.12.0-2+deb12u1	vulnerable
	bookworm (security)	22.12.0-2+deb12u2	fixed
	trixie	25.03.0-5+deb13u2	vulnerable
	trixie (security)	25.03.0-5+deb13u3	fixed
	forky, sid	26.01.0-5	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
poppler	source	bookworm	22.12.0-2+deb12u2	DSA-6334-1
poppler	source	trixie	25.03.0-5+deb13u3	DSA-6334-1
poppler	source	(unstable)	25.03.0-10		1117046

Notes

[bullseye] - poppler <postponed> (minor issue)
Fixed by: https://gitlab.freedesktop.org/poppler/poppler/-/commit/f54b815672117c250420787c8c006de98e8c7408 (poppler-25.04.0)