Christoph M. Becker b4e4788c44 Fix #76130: Heap Buffer Overflow (READ: 1786) in exif_iif_add_value ...

The MakerNote is not necessarily null-terminated, so we must not use
`strlen()` to avoid OOB reads.  Instead `php_strnlen()` is the proper
way to handle this.

2018-04-22 20:15:02 -07:00

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