{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2018-08-11T00:00:00.000Z","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":"2020-02-25T03:06:20.000Z","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":"2018-08-15T18:00:00.000Z","dateReserved":"2018-08-01T00:00:00.000Z","dateUpdated":"2024-08-05T09:38:13.960Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}