{"id":"DEBIAN-CVE-2025-66293","details":"LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.52, an out-of-bounds read vulnerability in libpng's simplified API allows reading up to 1012 bytes beyond the png_sRGB_base[512] array when processing valid palette PNG images with partial transparency and gamma correction. The PNG files that trigger this vulnerability are valid per the PNG specification; the bug is in libpng's internal state management. Upgrade to libpng 1.6.52 or later.","modified":"2026-09-01T16:06:20.895092768Z","published":"2025-12-03T21:15:53.060Z","upstream":["CVE-2025-66293"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-66293"}],"affected":[{"package":{"name":"libpng1.6","ecosystem":"Debian:12","purl":"pkg:deb/debian/libpng1.6?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.39-2+deb12u1"}]}],"versions":["1.6.39-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-66293.json"}},{"package":{"name":"libpng1.6","ecosystem":"Debian:13","purl":"pkg:deb/debian/libpng1.6?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.48-1+deb13u1"}]}],"versions":["1.6.48-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-66293.json"}},{"package":{"name":"libpng1.6","ecosystem":"Debian:14","purl":"pkg:deb/debian/libpng1.6?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.52-1"}]}],"versions":["1.6.48-1","1.6.49-1~exp1","1.6.50-1","1.6.50-1~exp1","1.6.51-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-66293.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"}]}