CVE-2015-6818: 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…

PriorityP434high7.5CVSS 2.0

AVNACLAuNCPIPAP

EPSS

2.41%

82.4th percentile

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.

Affected

7 ranges

Vendor	Product	Version range	Fixed in
canonical	ubuntu_linux	—	—
debian	ffmpeg	< ffmpeg 7:2.7.2-1 (bookworm)	ffmpeg 7:2.7.2-1 (bookworm)
ffmpeg	ffmpeg	<= 2.7.1	—
ffmpeg	ffmpeg	>= 0 < 7:2.7.2-1	7:2.7.2-1
ffmpeg	ffmpeg	>= 0 < 7:2.7.2-1	7:2.7.2-1
ffmpeg	ffmpeg	>= 0 < 7:2.7.2-1	7:2.7.2-1
ffmpeg	ffmpeg	>= 0 < 7:2.7.2-1	7:2.7.2-1

CVSS provenance

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

osv7.5HIGH

vendor_debian7.5HIGH

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