CVE-2026-49346

Description

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in `de265_image_get_buffer()` (`libde265/image.cc:128`). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent `fill_image()` call computes the real size using `size_t`, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.

Traduire en français

Produits concernés

• strukturag libde265
• Struktur libde265

Scores CVSS

Faiblesses (CWE)

• CWE-190

Références

• https://github.com/strukturag/libde265/commit/8a1b5cf212f78e1c77cb46eb5d56e492a9336eb8 Patch
• https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86 ExploitVendor Advisory
• https://github.com/strukturag/libde265/security/advisories/GHSA-vv8h-932h-7r86 ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories