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CVE-2018-8970

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

LibreSSL是OpenBSD项目开发的一个OpenSSL加密软件库的分支，也是安全套接层（SSL）和传输层安全（TLS）协议的开源实现。 LibreSSL 2.7.1之前的2.7.0版本中的lib/libcrypto/x509/x509_vpm.c文件的‘int_x509_param_set_hosts’函数存在安全漏洞，该漏洞源于程序不支持长度为零的名称。攻击者可借助特制的证书利用该漏洞冒充服务器并获取敏感信息。

AI Predicted 8.1 Difficulty: Easy EPSS 0.96% · P58
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I. Basic Information for CVE-2018-8970

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0 before 2.7.1 does not support a certain special case of a zero name length, which causes silent omission of hostname verification, and consequently allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. NOTE: the LibreSSL documentation indicates that this special case is supported, but the BoringSSL documentation does not.
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
LibreSSL 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreSSL是OpenBSD项目开发的一个OpenSSL加密软件库的分支，也是安全套接层（SSL）和传输层安全（TLS）协议的开源实现。 LibreSSL 2.7.1之前的2.7.0版本中的lib/libcrypto/x509/x509_vpm.c文件的‘int_x509_param_set_hosts’函数存在安全漏洞，该漏洞源于程序不支持长度为零的名称。攻击者可借助特制的证书利用该漏洞冒充服务器并获取敏感信息。
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 -

II. Public POCs for CVE-2018-8970

# POC Description Source Link Shenlong Link
1 Demo for https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8970 https://github.com/tiran/CVE-2018-8970 POC Details
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III. Intelligence Information for CVE-2018-8970

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Patches & Fixes for CVE-2018-8970 (1)

Other References for CVE-2018-8970 (2)

Same Patch Batch · n/a · 2018-03-24 · 13 CVEs total

CVE-2018-8972 Creditwest Bank CMS Project 跨站请求伪造漏洞
CVE-2018-8973 OTCMS 跨站脚本漏洞
CVE-2018-8971 GitLab 安全漏洞
CVE-2015-9257 BMC Remedy Action Request System 跨站脚本漏洞
CVE-2017-17749 BOSE SoundTouch 跨站脚本漏洞
CVE-2017-17750 BOSE SoundTouch 跨站脚本漏洞
CVE-2017-17751 BOSE SoundTouch 安全漏洞
CVE-2018-8965 ZZCMS 安全漏洞
CVE-2018-8966 ZZCMS 安全漏洞
CVE-2018-8967 ZZCMS 安全漏洞
CVE-2018-8968 ZZCMS 安全漏洞
CVE-2018-8969 ZZCMS 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2018-8970

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