Exif Thumbnail Offset Information Disclosure Vulnerability

CVE-2016-7128 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

The exif_process_IFD_in_TIFF function in ext/exif/exif.c in PHP before 5.6.25 and 7.x before 7.0.10 mishandles the case of a thumbnail offset that exceeds the file size, which allows remote attackers to obtain sensitive information from process memory via a crafted TIFF image.

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