{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-08-11T00:00:00", "descriptions": [{"lang": "en", "value": "A buffer overflow issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the function `ykpiv_transfer_data()`: {% highlight c %} if(*out_len + recv_len - 2 > max_out) { fprintf(stderr, \"Output buffer to small, wanted to write %lu, max was %lu.\", *out_len + recv_len - 2, max_out); } if(out_data) { memcpy(out_data, data, recv_len - 2); out_data += recv_len - 2; *out_len += recv_len - 2; } {% endhighlight %} -- it is clearly checked whether the buffer is big enough to hold the data copied using `memcpy()`, but no error handling happens to avoid the `memcpy()` in such cases. This code path can be triggered with malicious data coming from a smartcard."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-02-25T03:06:20", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.yubico.com/support/security-advisories/ysa-2018-03/"}, {"tags": ["x_refsource_MISC"], "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/"}, {"name": "[oss-security] 20180814 X41 D-Sec GmbH Security Advisory X41-2018-001: Multiple Vulnerabilities in Yubico Piv", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2018/08/14/2"}, {"name": "USN-4276-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4276-1/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-14779", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A buffer overflow issue was discovered in the Yubico-Piv 1.5.0 smartcard driver. The file lib/ykpiv.c contains the following code in the function `ykpiv_transfer_data()`: {% highlight c %} if(*out_len + recv_len - 2 > max_out) { fprintf(stderr, \"Output buffer to small, wanted to write %lu, max was %lu.\", *out_len + recv_len - 2, max_out); } if(out_data) { memcpy(out_data, data, recv_len - 2); out_data += recv_len - 2; *out_len += recv_len - 2; } {% endhighlight %} -- it is clearly checked whether the buffer is big enough to hold the data copied using `memcpy()`, but no error handling happens to avoid the `memcpy()` in such cases. This code path can be triggered with malicious data coming from a smartcard."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://www.yubico.com/support/security-advisories/ysa-2018-03/", "refsource": "CONFIRM", "url": "https://www.yubico.com/support/security-advisories/ysa-2018-03/"}, {"name": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/", "refsource": "MISC", "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/"}, {"name": "[oss-security] 20180814 X41 D-Sec GmbH Security Advisory X41-2018-001: Multiple Vulnerabilities in Yubico Piv", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2018/08/14/2"}, {"name": "USN-4276-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4276-1/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T09:38:13.960Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.yubico.com/support/security-advisories/ysa-2018-03/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/"}, {"name": "[oss-security] 20180814 X41 D-Sec GmbH Security Advisory X41-2018-001: Multiple Vulnerabilities in Yubico Piv", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2018/08/14/2"}, {"name": "USN-4276-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4276-1/"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-14779", "datePublished": "2018-08-15T18:00:00", "dateReserved": "2018-08-01T00:00:00", "dateUpdated": "2024-08-05T09:38:13.960Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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Esta ruta de c\u00f3digo se puede desencadenar con datos maliciosos provenientes de una tarjeta inteligente."}], "id": "CVE-2018-14779", "lastModified": "2020-02-25T04:15:10.973", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 0.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-08-15T18:29:00.747", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2018/08/14/2"}, {"source": "cve@mitre.org", "url": "https://usn.ubuntu.com/4276-1/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.yubico.com/support/security-advisories/ysa-2018-03/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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