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Unrated severityNVD Advisory· Published Sep 6, 2015· Updated Jun 17, 2026

CVE-2015-6818

CVE-2015-6818

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • FFmpeg/Ffmpeg2 versions
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*range: <=2.7.1
    • (no CPE)range: <2.7.2
  • Canonical/Ubuntu Linux
    cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*

Patches

Vulnerability mechanics

References

5

News mentions

0

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