CVE-2015-6818

FFmpeg < 2.7.2 - Denial of Service via Duplicate IHDR Chunk in PNG Image

Title source: llm
STIX 2.1

Description

The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (aka image header) chunk in a PNG image, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted image with two or more of these chunks.

References (5)

Core 5
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2944-1
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1033483
Various Sources x_refsource_confirm
http://ffmpeg.org/security.html

Scores

EPSS 0.0089
EPSS Percentile 75.7%

Details

CWE
CWE-17
Status published
Products (2)
canonical/ubuntu_linux 12.04
ffmpeg/ffmpeg < 2.7.1
Published Sep 06, 2015
Tracked Since Feb 18, 2026