CVE-2025-65018

Name	CVE-2025-65018
Description	LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.
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	DLA-4396-1, DSA-6076-1
Debian Bugs	1121216

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libpng1.6 (PTS)	bookworm, bookworm (security)	1.6.39-2+deb12u5	fixed
	trixie (security), trixie	1.6.48-1+deb13u5	fixed
	forky, sid	1.6.58-1	fixed

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
libpng1.6	source	bullseye	1.6.37-3+deb11u1	DLA-4396-1
libpng1.6	source	bookworm	1.6.39-2+deb12u1	DSA-6076-1
libpng1.6	source	trixie	1.6.48-1+deb13u1	DSA-6076-1
libpng1.6	source	(unstable)	1.6.51-1		1121216

Notes

https://github.com/pnggroup/libpng/security/advisories/GHSA-7wv6-48j4-hj3g
https://github.com/pnggroup/libpng/issues/755
https://github.com/pnggroup/libpng/commit/16b5e3823918840aae65c0a6da57c78a5a496a4d (v1.6.51)
https://github.com/pnggroup/libpng/commit/218612ddd6b17944e21eda56caf8b4bf7779d1ea (v1.6.51)
https://www.openwall.com/lists/oss-security/2025/11/22/1