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CVE-2015-1787

Quick assessment

Affected
n/a n/a
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenSSL是OpenSSL团队开发的一个开源的能够实现安全套接层（SSL v2/v3）和安全传输层（TLS v1）协议的通用加密库，它支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL的s3_srvr.c文件中的‘ssl3_get_client_key_exchange’函数存在安全漏洞。当程序启用客户端身份验证并使用Diffie-Hellman密码套件时，远程攻击者可借助特制的ClientKeyExchange消息利用该漏洞造成拒绝服务（守护进程崩溃）。以下版本受到影响：Op

AI Predicted 7.5 Difficulty: Easy EPSS 6.53% · P93

Possible ATT&CK Techniques 1 AI

T1029 · Scheduled Transfer
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I. Basic Information for CVE-2015-1787

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The ssl3_get_client_key_exchange function in s3_srvr.c in OpenSSL 1.0.2 before 1.0.2a, when client authentication and an ephemeral Diffie-Hellman ciphersuite are enabled, allows remote attackers to cause a denial of service (daemon crash) via a ClientKeyExchange message with a length of zero.
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
OpenSSL‘ssl3_get_client_key_exchange’函数拒绝服务漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSSL是OpenSSL团队开发的一个开源的能够实现安全套接层（SSL v2/v3）和安全传输层（TLS v1）协议的通用加密库，它支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL的s3_srvr.c文件中的‘ssl3_get_client_key_exchange’函数存在安全漏洞。当程序启用客户端身份验证并使用Diffie-Hellman密码套件时，远程攻击者可借助特制的ClientKeyExchange消息利用该漏洞造成拒绝服务（守护进程崩溃）。以下版本受到影响：Op
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-2015-1787

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III. Intelligence Information for CVE-2015-1787

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Vendor Advisories for CVE-2015-1787 (10)

Mailing List Discussions for CVE-2015-1787 (3)

Other References for CVE-2015-1787 (4)

Same Patch Batch · n/a · 2015-03-19 · 18 CVEs total

CVE-2015-0285 OpenSSL‘ssl3_client_hello’函数安全漏洞
CVE-2015-0293 OpenSSL SSLv2 拒绝服务漏洞
CVE-2015-0292 OpenSSL‘EVP_DecodeUpdate’函数缓冲区错误漏洞
CVE-2015-0291 OpenSSL sigalgs 拒绝服务漏洞
CVE-2015-0290 OpenSSL‘ssl3_write_bytes’函数拒绝服务漏洞
CVE-2015-0289 OpenSSL PKCS#7 拒绝服务漏洞
CVE-2015-0288 OpenSSL‘X509_to_X509_REQ’函数拒绝服务漏洞
CVE-2015-0287 OpenSSL‘ASN1_item_ex_d2i’函数安全漏洞
CVE-2015-0286 OpenSSL‘ASN1_TYPE_cmp’函数安全漏洞
CVE-2015-2281 Fortinet Single Sign On 基于栈的缓冲区溢出漏洞
CVE-2015-0209 OpenSSL‘d2i_ECPrivateKey’函数释放后重用漏洞
CVE-2015-0208 OpenSSL‘rsa_item_verify’函数拒绝服务漏洞
CVE-2015-0207 OpenSSL‘dtls1_listen’函数拒绝服务漏洞
CVE-2015-2352 MyBB 安全漏洞
CVE-2015-2351 Alkacon Software OpenCms 跨站脚本漏洞
CVE-2015-2350 MikroTik RouterOS 跨站请求伪造漏洞
CVE-2015-2349 SuperWebMailer 跨站脚本漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2015-1787

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