CVE-2017-7866: Out-of-bounds Write

FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decodezbuf function in libavcodec/pngdec.c...

CVE-2017-7863: Out-of-bounds Write

FFmpeg before 2017-02-04 has an out-of-bounds write caused by a heap-based buffer overflow related to the decodeframecommon function in libavcodec/pngdec.c...

CVE-2015-6818: Undefined Security Weakness

The decodeihdrchunk 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...

CVE-2014-9317: Improper Restriction of Operations within the Bounds of a Memory Buffer

The decodeihdrchunk function in libavcodec/pngdec.c in FFMpeg before 2.1.6, 2.2.x through 2.3.x, and 2.4.x before 2.4.4 allows remote attackers to cause a denial of service out-of-bounds heap access and possibly have other unspecified impact via an IDAT before an IHDR in a PNG file...

CVE-2014-8545: Undefined Security Weakness

libavcodec/pngdec.c in FFmpeg before 2.4.2 accepts the monochrome-black format without verifying that the bits-per-pixel value is 1, which allows remote attackers to cause a denial of service out-of-bounds access or possibly have unspecified other impact via crafted PNG data...