Critical
Security advisory
In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-16428
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:25 UTC · Revision 1
Source evidence
In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.
osv:CVE-2018-16428
Complete source record
{
"id": "8af62e09167e77e72e9e090029fd2547f395bdb02492d913d1c465df4bf56a44",
"url": "https://osv.dev/vulnerability/CVE-2018-16428",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-16428",
"summary": "In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.",
"evidence": "osv:CVE-2018-16428",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2018-16428",
"aliases": [
"CVE-2018-16428"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/gnome/glib",
"type": "GIT",
"events": [
{
"introduced": "d0364b443805dcb832c200fcf8bf58a64fdf3e7d"
},
{
"last_affected": "d0364b443805dcb832c200fcf8bf58a64fdf3e7d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gnome:glib:2.56.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.56.1"
},
{
"last_affected": "2.56.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.56.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16428.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.gnome.org/gnome/glib",
"type": "GIT",
"events": [
{
"introduced": "d0364b443805dcb832c200fcf8bf58a64fdf3e7d"
},
{
"last_affected": "d0364b443805dcb832c200fcf8bf58a64fdf3e7d"
},
{
"fixed": "fccef3cc822af74699cca84cd202719ae61ca3b9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:gnome:glib:2.56.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.56.1"
},
{
"last_affected": "2.56.1"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "fccef3cc822af74699cca84cd202719ae61ca3b9"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.56.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16428.json",
"vanir_signatures": [
{
"id": "CVE-2018-16428-b917d5c8",
"digest": {
"threshold": 0.9,
"line_hashes": [
"27967146418341091245337691577480173759",
"71132367559488922544869764440102681458",
"198859563808106364930921395270440707469",
"96452346924312047733840760789155889613",
"296685038050425211123999464966957840432",
"286859789758931844681193954555906907404"
]
},
"source": "https://gitlab.gnome.org/gnome/glib@fccef3cc822af74699cca84cd202719ae61ca3b9",
"target": {
"file": "glib/gmarkup.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2018-16428-f56c3b10",
"digest": {
"length": 3192,
"function_hash": "78154215784110994088640107664106133672"
},
"source": "https://gitlab.gnome.org/gnome/glib@fccef3cc822af74699cca84cd202719ae61ca3b9",
"target": {
"file": "glib/gmarkup.c",
"function": "g_markup_parse_context_end_parse"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-24T14:21:22Z"
}
}
],
"modified": "2026-10-24T14:21:22.583111956Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2019/07/msg00029.html",
"https://usn.ubuntu.com/3767-1/",
"https://usn.ubuntu.com/3767-2/",
"https://gitlab.gnome.org/GNOME/glib/commit/fccef3cc822af74699cca84cd202719ae61ca3b9",
"https://gitlab.gnome.org/GNOME/glib/issues/1364"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
"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": "12.04"
},
{
"last_affected": "12.04"
},
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-16428",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443647,
"published_at": "2018-09-04T00:29:01.557+00:00"
}