LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Alpine Linux ALPINE-CVE-2026-22801 libpng 修正版: 1.6.54-r0
- Debian DEBIAN-CVE-2026-22801 libpng1.6 修正版: 1.6.37-3+deb11u2
- Ubuntu UBUNTU-CVE-2026-22801 libpng1.6 修正版: 1.6.34-1ubuntu0.18.04.2+esm2
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov