fits-io.c in GIMP before 2.8.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a malformed XTENSION header of a .fit file, as demonstrated using a long string.
{ "urgency": "unimportant" }
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2012-3236.json"