NULL pointer dereference vulnerability in the rebuild_vlists function in lib/dotgen/conc.c in the dotgen library in Graphviz 2.40.1 allows remote attackers to cause a denial of service (application crash) via a crafted file.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-10196.json"