Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
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.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Yubico-Piv 缓冲区错误漏洞
Vulnerability Description
Yubico-Piv是一款用于对YubiKey的身份卡（PIV）应用程序进行交互的工具。 Yubico-Piv 1.5.0版本中的lib/ykpiv.c文件的‘ykpiv_transfer_data()’函数存在缓冲区溢出漏洞，该漏洞源于程序缺少错误处理机制。攻击者可借助来自智能卡的恶意数据利用该漏洞执行任意代码。
CVSS Information
N/A
Vulnerability Type
N/A