203 lines
9.0 KiB
JSON
203 lines
9.0 KiB
JSON
{
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"value": "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."
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"tags": [
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"url": "https://www.yubico.com/support/security-advisories/ysa-2018-03/"
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},
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{
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"tags": [
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"x_refsource_MISC"
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"url": "https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/"
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"name": "[oss-security] 20180814 X41 D-Sec GmbH Security Advisory X41-2018-001: Multiple Vulnerabilities in Yubico Piv",
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"name": "USN-4276-1",
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"tags": [
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"vendor-advisory",
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"x_refsource_UBUNTU"
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],
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"title": "CVE Program Container",
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