Medium
Security advisory
An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-cac1.c mishandles buffer limits for CAC certificates.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-19481
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:35 UTC · Revision 1
Source evidence
An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-cac1.c mishandles buffer limits for CAC certificates.
osv:CVE-2019-19481
Complete source record
{
"id": "de032d2d533bce45f05780c9b2e03d12219a82b6a29a8e65d39bc09d24264e55",
"url": "https://osv.dev/vulnerability/CVE-2019-19481",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-19481",
"summary": "An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-cac1.c mishandles buffer limits for CAC certificates.",
"evidence": "osv:CVE-2019-19481",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-19481",
"aliases": [
"CVE-2019-19481"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/opensc/opensc",
"type": "GIT",
"events": [
{
"introduced": "f1691fc91fc113191c3a8aaf5facd6983334ec47"
},
{
"last_affected": "01678e871e4bb30dd4bde7bf8b2a63c5cddb6a11"
},
{
"fixed": "b75c002cfb1fd61cd20ec938ff4937d7b1a94278"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:opensc_project:opensc:0.19.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "0.19.0-NA"
},
{
"last_affected": "0.19.0-NA"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:opensc_project:opensc:0.20.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "0.20.0-rc1"
},
{
"last_affected": "0.20.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:opensc_project:opensc:0.20.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "0.20.0-rc2"
},
{
"last_affected": "0.20.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:opensc_project:opensc:0.20.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "0.20.0-rc3"
},
{
"last_affected": "0.20.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "b75c002cfb1fd61cd20ec938ff4937d7b1a94278"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"0.19.0-NA",
"0.20.0-rc1",
"0.20.0-rc2",
"0.20.0-rc3",
"0.19.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19481.json",
"vanir_signatures": [
{
"id": "CVE-2019-19481-98aec3cf",
"digest": {
"length": 1804,
"function_hash": "189796757233420035366764386465414775224"
},
"source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
"target": {
"file": "src/libopensc/card-cac1.c",
"function": "cac_read_binary"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-19481-aa771868",
"digest": {
"length": 1216,
"function_hash": "172535176475497180497442667315780321309"
},
"source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
"target": {
"file": "src/libopensc/card-cac1.c",
"function": "cac_cac1_get_certificate"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-19481-b7662d5f",
"digest": {
"threshold": 0.9,
"line_hashes": [
"111373285869590301901788120333576930100",
"77698511683037410575331158082653756719",
"273616107659295731614926021083627764066",
"334827262301003682911591777866694837779",
"35167700645591702568842934822718756163",
"167916283527506075229918457864510764679",
"160637723847752232309012385792564332546",
"67766559596816410963586224821672125746",
"161170193942755711454602625320675028848",
"256643953941796997051543871300579042697",
"33270032802398029811089922548528544589",
"82441505421696923204806749368486025678",
"292129794305514931969203314138896501785",
"236733298990358685809239477618104150189",
"114860608003072413783369965954260825910",
"217391383372655397584067361156904254766",
"136231979249826060844140870900669231875",
"8071045375367627834132348254841800521"
]
},
"source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
"target": {
"file": "src/libopensc/card-cac1.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:56:48Z"
}
}
],
"modified": "2026-10-20T13:56:48.696663153Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDSQLMZZYBHO5X3BK7D6E7E6NZIMZDI5/",
"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18618",
"https://github.com/OpenSC/OpenSC/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-19481",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388428,
"published_at": "2019-12-01T23:15:10.807+00:00"
}