An out-of-bounds read 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_fetch_object()`: {% highlight c %} if(sw == SW_SUCCESS) { size_t outlen; int offs = _ykpiv_get_length(data + 1, &outlen); if(offs == 0) { return YKPIV_SIZE_ERROR; } memmove(data, data + 1 + offs, outlen); *len = outlen; return YKPIV_OK; } else { return YKPIV_GENERIC_ERROR; } {% endhighlight %} -- in the end, a `memmove()` occurs with a length retrieved from APDU data. This length is not checked for whether it is outside of the APDU data retrieved. Therefore the `memmove()` could copy bytes behind the allocated data buffer into this buffer.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-08-15T18:00:00

Updated: 2024-08-05T09:38:13.975Z

Reserved: 2018-08-01T00:00:00

Link: CVE-2018-14780

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-08-15T18:29:00.887

Modified: 2020-02-25T04:15:11.223

Link: CVE-2018-14780

cve-icon Redhat

No data.