Home/CVE/The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (ak
CVE

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 (ak

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.

HIGH · CVSS 7.5 EPSS 0.00887
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Affected Products & Versions

2
ffmpeg<= 2.7.1
canonical ubuntu linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Published to NVD06 Sep 2015 · 02:59 AM
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Vendor Advisories

1
usnUSN-2944-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://ffmpeg.org/security.html
http://git.videolan.org/?p=ffmpeg.git
http://www.securitytracker.com/id/1033483
http://www.ubuntu.com/usn/USN-2944-1
https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html
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