jasper: NULL pointer exception in jp2_encode()

JasPer 2.0.12 is vulnerable to a NULL pointer exception in the function jp2encode which failed to check to see if the image contained at least one component resulting in a denial-of-service...

ALPINE-CVE-2017-1000050

JasPer 2.0.12 is vulnerable to a NULL pointer exception in the function jp2encode which failed to check to see if the image contained at least one component resulting in a denial-of-service...