CVE-2019-19481

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Source
https://nvd.nist.gov/vuln/detail/CVE-2019-19481
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-19481.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2019-19481
Downstream
Related
Published
2019-12-01T23:15:10Z
Modified
2025-10-15T10:45:30.343069Z
Severity
  • 4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/opensc/opensc

Affected ranges

Type
GIT
Repo
https://github.com/opensc/opensc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b75c002cfb1fd61cd20ec938ff4937d7b1a94278

Affected versions

0.*

0.12.2
0.12.2-rc1
0.13.0
0.13.0pre1
0.13.0rc1
0.14.0
0.14.0rc2
0.14.0rtm
0.15.0
0.16.0
0.16.0-rc1
0.16.0-rc2
0.17.0
0.17.0-rc1
0.17.0-rc2
0.18.0
0.18.0-rc1
0.18.0-rc2
0.19.0
0.19.0-rc1
0.20.0-rc1
0.20.0-rc2
0.20.0-rc3

v0.*

v0.12.2
v0.16.0-pre1

Database specific

vanir_signatures

[
    {
        "signature_type": "Function",
        "id": "CVE-2019-19481-98aec3cf",
        "source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "cac_read_binary",
            "file": "src/libopensc/card-cac1.c"
        },
        "digest": {
            "function_hash": "189796757233420035366764386465414775224",
            "length": 1804.0
        }
    },
    {
        "signature_type": "Function",
        "id": "CVE-2019-19481-aa771868",
        "source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "function": "cac_cac1_get_certificate",
            "file": "src/libopensc/card-cac1.c"
        },
        "digest": {
            "function_hash": "172535176475497180497442667315780321309",
            "length": 1216.0
        }
    },
    {
        "signature_type": "Line",
        "id": "CVE-2019-19481-b7662d5f",
        "source": "https://github.com/opensc/opensc/commit/b75c002cfb1fd61cd20ec938ff4937d7b1a94278",
        "signature_version": "v1",
        "deprecated": false,
        "target": {
            "file": "src/libopensc/card-cac1.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "111373285869590301901788120333576930100",
                "77698511683037410575331158082653756719",
                "273616107659295731614926021083627764066",
                "334827262301003682911591777866694837779",
                "35167700645591702568842934822718756163",
                "167916283527506075229918457864510764679",
                "160637723847752232309012385792564332546",
                "67766559596816410963586224821672125746",
                "161170193942755711454602625320675028848",
                "256643953941796997051543871300579042697",
                "33270032802398029811089922548528544589",
                "82441505421696923204806749368486025678",
                "292129794305514931969203314138896501785",
                "236733298990358685809239477618104150189",
                "114860608003072413783369965954260825910",
                "217391383372655397584067361156904254766",
                "136231979249826060844140870900669231875",
                "8071045375367627834132348254841800521"
            ]
        }
    }
]