The agroot() function in cgraph\obj.c in libcgraph.a in Graphviz 2.39.20160612.1140 has a NULL pointer dereference, as demonstrated by graphml2gv.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FI3D5TQE3IMCSF5OUTXQL4GVKFCIY5JG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CLEAHLDJVMAEGA3YMC7KPKJ7ZPXNMJID/
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00065.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00056.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00065.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00054.html
https://research.loginsoft.com/bugs/null-pointer-dereference-in-function-agroot/
https://gitlab.com/graphviz/graphviz/issues/1517
Source: Mitre, NVD
Published: 2019-04-08
Updated: 2024-11-21
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00715