Critical
Security advisory
NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration files. This affects systems that have NetHack installed suid/sgid, and shared systems that allow users to upload their own configuration files.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-19905
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:29 UTC · Revision 1
Source evidence
NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration files. This affects systems that have NetHack installed suid/sgid, and shared systems that allow users to upload their own configuration files.
osv:CVE-2019-19905
Complete source record
{
"id": "9c8dab808e7f6dfb19cfd1275730c3045d25870c005606a388a610fb7e03a11d",
"url": "https://osv.dev/vulnerability/CVE-2019-19905",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-19905",
"summary": "NetHack 3.6.x before 3.6.4 is prone to a buffer overflow vulnerability when reading very long lines from configuration files. This affects systems that have NetHack installed suid/sgid, and shared systems that allow users to upload their own configuration files.",
"evidence": "osv:CVE-2019-19905",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2019-19905",
"aliases": [
"CVE-2019-19905",
"GHSA-3cm7-rgh5-9pq5"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nethack/nethack",
"type": "GIT",
"events": [
{
"introduced": "585e9f1b35fda7b47f8d27d12f7e93e12a69a7bc"
},
{
"fixed": "cf9e92677a18d1bc66c040068b2e666c651c7522"
},
{
"fixed": "f001de79542b8c38b1f8e6d7eaefbbd28ab94b47"
},
{
"fixed": "f4a840a48f4bcf11757b3d859e9d53cc9d5ef226"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:nethack:nethack:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.6.0"
},
{
"fixed": "3.6.4"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "f001de79542b8c38b1f8e6d7eaefbbd28ab94b47"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "f4a840a48f4bcf11757b3d859e9d53cc9d5ef226"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"NetHack-3.6.3_Released",
"NetHack-3.6.3.beta1.2019.11.17",
"NetHack-3.6.3.wip.2019.10.30",
"v3.6.3.wip.2019.10.29",
"NetHack-3.6.3.wip.2019.10.29",
"v3.6.3.757eca7",
"NetHack-3.6.3_WIP",
"NetHack-3.6.2_Released",
"NetHack-3.6.2_Release",
"NetHack-3.6.1_Release",
"NetHack-3.6.1_RC01",
"NetHack-3.6.0_Release",
"NetHack-3.6.0_RC05"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19905.json",
"vanir_signatures": [
{
"id": "CVE-2019-19905-070f9c1f",
"digest": {
"threshold": 0.9,
"line_hashes": [
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"196805195529654038130795328704152591388",
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]
},
"source": "https://github.com/nethack/nethack/commit/f4a840a48f4bcf11757b3d859e9d53cc9d5ef226",
"target": {
"file": "src/files.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-19905-a8a22e62",
"digest": {
"threshold": 0.9,
"line_hashes": [
"148383733785852221357013502342826007967",
"236825485053627463327810525715866187754",
"247962841106412913271293681928109696190",
"132038915628151169470867789690965346955",
"109237742000191090058096133844090657287"
]
},
"source": "https://github.com/nethack/nethack/commit/f001de79542b8c38b1f8e6d7eaefbbd28ab94b47",
"target": {
"file": "src/files.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:44:52Z"
}
}
],
"modified": "2026-10-20T13:44:52.869695016Z",
"provider": "osv",
"references": [
"https://github.com/NetHack/NetHack/security/advisories/GHSA-3cm7-rgh5-9pq5",
"https://nethack.org/security/",
"https://bugs.debian.org/947005",
"https://github.com/NetHack/NetHack/commit/f001de79542b8c38b1f8e6d7eaefbbd28ab94b47",
"https://github.com/NetHack/NetHack/commit/f4a840a48f4bcf11757b3d859e9d53cc9d5ef226"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-19905",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388012,
"published_at": "2019-12-19T18:15:12.647+00:00"
}