HighFix available
libtasn1-6 — security advisory
An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.
- Products
- libtasn1-6
- Affected versions
- Not specified
- Fixed versions
- 4.13-2
- CVEs
- CVE-2018-6003
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:56 UTC · Revision 1
Source evidence
An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.
osv:DEBIAN-CVE-2018-6003
libtasn1-6
Fixed versions: 4.13-2
libtasn1-6
Fixed versions: 4.13-2
libtasn1-6
Fixed versions: 4.13-2
Complete source record
{
"id": "34e6580042c430a7bda34e14158975d1a120410c1d04fef3e23c45a9f05b5acf",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-6003",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-6003",
"summary": "An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS.",
"evidence": "osv:DEBIAN-CVE-2018-6003",
"products": [
{
"name": {
"value": "libtasn1-6",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.13-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libtasn1-6",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.13-2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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"fixed_versions": [
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],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-6003",
"aliases": [
"DEBIAN-CVE-2018-6003"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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{
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"package": {
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"purl": "pkg:deb/debian/libtasn1-6?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
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"ecosystem_specific": {
"urgency": "not yet assigned"
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},
{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-6003.json"
},
"ecosystem_specific": {
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{
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"package": {
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"purl": "pkg:deb/debian/libtasn1-6?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-6003.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:29.346716617Z",
"provider": "osv",
"upstream": [
"CVE-2018-6003"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-6003"
]
},
"related_cves": [
{
"value": "CVE-2018-6003",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419511,
"published_at": "2018-01-22T20:29:00.493+00:00"
}