There is a reachable assertion abort in the function calcstepsizes() in jpc/jpc_dec.c in JasPer 2.0.12 that will lead to a remote denial of service attack.
Reference Links(if available):
CVSS Score (if available)
v2: / MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
v3: / HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H