| 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 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libpng1.6 (PTS) | bullseye | 1.6.37-3 | vulnerable |
| bullseye (security) | 1.6.37-3+deb11u1 | fixed | |
| bookworm | 1.6.39-2 | vulnerable | |
| bookworm (security) | 1.6.39-2+deb12u1 | fixed | |
| trixie | 1.6.48-1 | vulnerable | |
| trixie (security) | 1.6.48-1+deb13u1 | fixed | |
| forky | 1.6.52-1 | fixed | |
| sid | 1.6.53-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | 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 |
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