Medium
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-10196
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:17 UTC · Revision 1
Source evidence
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.
osv:CVE-2018-10196
Complete source record
{
"id": "617e6c162784ac0277545fb23d50ff0afe2c2f6c4de721822359349f3fc5e35f",
"url": "https://osv.dev/vulnerability/CVE-2018-10196",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-10196",
"summary": "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.",
"evidence": "osv:CVE-2018-10196",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-10196",
"aliases": [
"CVE-2018-10196"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://gitlab.com/graphviz/graphviz",
"type": "GIT",
"events": [
{
"introduced": "67cd2e5121379a38e0801cc05cce5033f8a2a609"
},
{
"last_affected": "67cd2e5121379a38e0801cc05cce5033f8a2a609"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:graphviz:graphviz:2.40.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.40.1"
},
{
"last_affected": "2.40.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.40.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10196.json"
}
}
],
"modified": "2026-10-20T10:50:03.788901848Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2021/05/msg00014.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VR2CT3LD52GWAQUZAOSEXSYE3O7HGN/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TWUEEJPMS5LAROYJYY6FREOTI6VPN3M4/",
"https://usn.ubuntu.com/3731-1/",
"https://bugzilla.redhat.com/show_bug.cgi?id=1579254",
"https://gitlab.com/graphviz/graphviz/issues/1367"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "27"
},
{
"last_affected": "27"
},
{
"introduced": "28"
},
{
"last_affected": "28"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-10196",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381213,
"published_at": "2018-05-30T21:29:00.283+00:00"
}