In libsixel v1.8.2, there is a heap-based buffer over-read in the function load_jpeg() in the file loader.c, as demonstrated by img2sixel.
https://govanguard.com/wp-content/uploads/2018/04/Header_Logo.png 0 0 govanguard https://govanguard.com/wp-content/uploads/2018/04/Header_Logo.png govanguard2019-01-02 10:29:002019-01-02 10:29:00CVE-2019-3574 (libsixel)
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