PT-2016-4396

Name of the Vulnerable Software and Affected Versions libssh versions prior to 0.7.3 Description The issue is related to a "bits/bytes confusion bug" in the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This bug causes ephemeral secrets to be improperly truncated to 128...

PT-2016-4413

Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.7.0 Description The issue arises from a "bits/bytes confusion bug" in the diffie hellman sha256 function, which improperly truncates secrets to 128 or 256 bits. This makes it easier for man-in-the-middle attackers t...

libssh -- weak Diffie-Hellman secret generation

Andreas Schneider reports: libssh versions 0.1 and above have a bits/bytes confusion bug and generate an abnormally short ephemeral secret for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. The resulting secret is 128 bits long, instead of the recommended sizes of 1024...

Gratipay: strengthen Diffie-Hellman (DH) key exchange parameters in grtp.co

Hi, server supports weak Diffie-Hellman DH key exchange parameters in grtp.co Poc:https://www.ssllabs.com/ssltest/analyze.html?d=grtp.co more description about weak Diffie-Hellman DH key exchange parameters https://weakdh.org/...

SA111 : OpenSSL Vulnerabilities 28-Jan-2016

SUMMARY Blue Coat products using affected versions of OpenSSL 1.0.2, 1.0.1, and 0.9.8 are susceptible to multiple vulnerabilities. A remote attacker can exploit these vulnerabilities to obtain ephemeral Diffie-Hellman DHE private key information and perform man-in-the-middle attacks on SSL/TLS...

OpenSSL加密算法破解漏洞

一、漏洞情况分析 OpenSSL是一个实现安全套接层和安全传输层协议的通用开源加密库，可支持多种加密算法，包括对称密码、哈希算法、安全散列算法等。 OpenSSL存在一处加密算法破解漏洞，但是该漏洞需要同时满足以下条件：OpenSSL版本为 1.0.2-1.0.2e；依赖于openssl的应用程序的签名算法生成的临时密钥必须基于Diffie...

CVE-2016-0701

The DHcheckpubkey function in crypto/dh/dhcheck.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman DH key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose...

DEBIAN-CVE-2016-0701

The DHcheckpubkey function in crypto/dh/dhcheck.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman DH key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose...

CVE-2016-0701: Exposure of Sensitive Information to an Unauthorized Actor

The DHcheckpubkey function in crypto/dh/dhcheck.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman DH key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose...

CVE-2016-0701

The DHcheckpubkey function in crypto/dh/dhcheck.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman DH key exchange, which makes it easier for remote attackers to discover a private DH exponent by making multiple handshakes with a peer that chose...

MGASA-2016-0056 Updated openssl packages fix security vulnerabilities

Updated openssl packages fix security vulnerability: OpenSSL before 1.0.2f would allow for a process to re-use the same private Diffie-Hellman exponent repeatedly during its entire lifetime, which, given that it also allows to use custom DH parameters which may be based on unsafe primes, could...

Updated openssl packages fix security vulnerabilities

Updated openssl packages fix security vulnerability: OpenSSL before 1.0.2f would allow for a process to re-use the same private Diffie-Hellman exponent repeatedly during its entire lifetime, which, given that it also allows to use custom DH parameters which may be based on unsafe primes, could...

PT-2017-8013

Name of the Vulnerable Software and Affected Versions Socat versions 1.7.3.0 through 2.0.0-b8 Description The issue lies in the OpenSSL address implementation, which does not utilize a prime number for the Diffie-Hellman DH key exchange. This oversight makes it easier for remote attackers to obta...

openSUSE Security Update : openldap2 (openSUSE-2016-104) (Logjam)

This update fixes the following security issues : - CVE-2015-6908: The bergetnext function allowed remote attackers to cause a denial of service reachable assertion and application crash via crafted BER data, as demonstrated by an attack against slapd. bsc945582 - CVE-2015-4000: Fix weak...

openSUSE Security Update : openldap2 (openSUSE-2016-102) (Logjam)

This update fixes the following security issues : - CVE-2015-6908: The bergetnext function allowed remote attackers to cause a denial of service reachable assertion and application crash via crafted BER data, as demonstrated by an attack against slapd. bsc945582 - CVE-2015-4000: Fix weak...

Socat Weak Diffie-Hellman Prime Number

Update Socat is the latest open source tool to come under suspicion that it is backdoored. Socat is a versatile command line utility that builds bi-directional communication streams and moves data between channels, including files, network pipes, serial connected devices, sockets or a combination...

OpenSSL 1.0.2 < 1.0.2f Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 1.0.2f. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.0.2f advisory. - The DHcheckpubkey function in crypto/dh/dhcheck.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriat...

OpenSSL 'Diffie-Hellman small subgroups' MitM Attack Vulnerability - Linux

OpenSSL is prone to a man-in-the-middle MitM attack vulnerability. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

OpenSSL 'Diffie-Hellman small subgroups' MitM Attack Vulnerability - Windows

OpenSSL is prone to a man-in-the-middle MitM attack vulnerability. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

openssl: man-in-the-middle

CVE-2015-3197 man-in-the-middle A flaw was found in the way malicious SSL/TLS clients could negotiate SSLv2 ciphers that have been disabled on the server. This could result in weak SSLv2 ciphers being used for SSL/TLS connections, making them vulnerable to man-in-the-middle attacks. -...