PT-2025-53782 · Libheif+3 · Libheif+3

Kaldreic · Published 2025-12-29 · Updated 2026-03-16 · CVE-2025-68431

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Name of the Vulnerable Software and Affected Versions libheif versions prior to 1.21.0

Description libheif is a decoder and encoder for HEIF and AVIF file formats. A specially crafted HEIF file that utilizes the overlay image item path can cause a heap buffer over-read in the HeifPixelImage::overlay() function. The function calculates a negative row length, which results in an underflow when converted to size t and is subsequently used in a memcpy operation. This leads to a read past the end of the source plane and a crash. The vulnerable function is HeifPixelImage::overlay(). As a workaround, avoid decoding images that use iovl overlay boxes.

Recommendations Update to version 1.21.0 or later. As a temporary workaround, avoid decoding images using iovl overlay boxes.

Exploit

Fix

DoS

Integer Overflow

Out of bounds Read

Weakness Enumeration

CWE-190

CWE-125

Related Identifiers

CVE-2025-68431

ECHO-D777-8AFD-DE52

GHSA-J87X-4GMQ-CQFQ

OPENSUSE-SU-2026:10019-1

OPENSUSE-SU-2026:20076-1

SUSE-SU-2026:0087-1

SUSE-SU-2026:0377-1

SUSE-SU-2026:20121-1

USN-7952-1

Affected Products

Debian

Linuxmint

Ubuntu

Libheif

References · 35

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68431.json · Exploit
• https://github.com/strukturag/libheif/security/advisories/GHSA-j87x-4gmq-cqfq · Vendor Advisory
• https://github.com/strukturag/libheif/commit/b8c12a7b70f46c9516711a988483bed377b78d46 · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2026:10019-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20076-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-68431 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-68431 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-68431 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-68431 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-68431 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-68431 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-68431 · Security Note
• https://ubuntu.com/security/CVE-2024-25269 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-68431 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7952-1 · Vendor Advisory