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...

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

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...

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...

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...

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 - 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 '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 =...

lib32-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. -...

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. -...

Critical OpenSSL Flaw Allows Hackers to Decrypt HTTPS Traffic

The OpenSSL Foundation has released the promised patch for a high severity vulnerability in its cryptographic code library that let attackers obtain the key to decrypt HTTPS-based communications and other Transport layer security TLS channels. OpenSSL is an open-source library that is the most...

January 2016 OpenSSL Patch Diffie Hellman Safe Primes

The OpenSSL project team today patched two vulnerabilities in the crypto library, one of which is rated high severity. The patches are in new releases of OpenSSL, 1.0.1r and 1.0.2f, and were made along with an enhancement to the strength of the cryptography in a previous mitigation for last year’...

OpenSSL re-uses unsafe prime numbers in Diffie-Hellman protocol

Overview OpenSSL may generate unsafe primes for use in the Diffie-Hellman protocol, which may lead to disclosure of enough information for an attacker to recover the private encryption key. Description CWE-325: Missing Required Cryptographic Step - CVE-2016-0701OpenSSL 1.0.2 introduced the abilit...

openSUSE: Security Advisory for openldap2 (openSUSE-SU-2016:0255-1)

The remote host is missing an update for the 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 ifdescription...

Security update for openldap2 (important)

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...

SUSE-SU-2016:0262-1 Security update for openldap2

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...