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4 vulnerabilities found for smart_card_minidriver by yubico
CVE-2018-14780 (GCVE-0-2018-14780)
Vulnerability from nvd – Published: 2018-08-15 18:00 – Updated: 2024-08-05 09:38
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.yubico.com/support/security-advisorie… | x_refsource_CONFIRM |
| https://www.x41-dsec.de/lab/advisories/x41-2018-0… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2018/08/14/2 | mailing-listx_refsource_MLIST |
| https://usn.ubuntu.com/4276-1/ | vendor-advisoryx_refsource_UBUNTU |
Date Public
2018-08-11 00:00
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CVE-2018-14779 (GCVE-0-2018-14779)
Vulnerability from nvd – Published: 2018-08-15 18:00 – Updated: 2024-08-05 09:38
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.yubico.com/support/security-advisorie… | x_refsource_CONFIRM |
| https://www.x41-dsec.de/lab/advisories/x41-2018-0… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2018/08/14/2 | mailing-listx_refsource_MLIST |
| https://usn.ubuntu.com/4276-1/ | vendor-advisoryx_refsource_UBUNTU |
Date Public
2018-08-11 00:00
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CVE-2018-14779 (GCVE-0-2018-14779)
Vulnerability from cvelistv5 – Published: 2018-08-15 18:00 – Updated: 2024-08-05 09:38
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.yubico.com/support/security-advisorie… | x_refsource_CONFIRM |
| https://www.x41-dsec.de/lab/advisories/x41-2018-0… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2018/08/14/2 | mailing-listx_refsource_MLIST |
| https://usn.ubuntu.com/4276-1/ | vendor-advisoryx_refsource_UBUNTU |
Date Public
2018-08-11 00:00
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CVE-2018-14780 (GCVE-0-2018-14780)
Vulnerability from cvelistv5 – Published: 2018-08-15 18:00 – Updated: 2024-08-05 09:38
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.yubico.com/support/security-advisorie… | x_refsource_CONFIRM |
| https://www.x41-dsec.de/lab/advisories/x41-2018-0… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2018/08/14/2 | mailing-listx_refsource_MLIST |
| https://usn.ubuntu.com/4276-1/ | vendor-advisoryx_refsource_UBUNTU |
Date Public
2018-08-11 00:00
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