CVE-2018-14779
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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。
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I. Basic Information for CVE-2018-14779
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Yubico-Piv 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
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。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2018-14779
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2018-14779 (1)
Other References for CVE-2018-14779 (2)
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https://www.yubico.com/support/security-advisories/ysa-2018-03/ x_refsource_CONFIRM
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https://www.x41-dsec.de/lab/advisories/x41-2018-001-Yubico-Piv/ x_refsource_MISC
Same Patch Batch · n/a · 2018-08-15 · 24 CVEs total
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| CVE-2018-15154 | OpenEMR 安全漏洞 | |
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| CVE-2018-15152 | OpenEMR 授权问题漏洞 | |
| CVE-2018-15151 | OpenEMR SQL注入漏洞 | |
| CVE-2018-15150 | OpenEMR SQL注入漏洞 | |
| CVE-2018-15149 | OpenEMR SQL注入漏洞 | |
| CVE-2018-15148 | OpenEMR SQL注入漏洞 | |
| CVE-2018-15147 | OpenEMR SQL注入漏洞 | |
| CVE-2018-15146 | OpenEMR SQL注入漏洞 |
Showing top 20 of 24 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2018-14779
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