OpenSSL Secret Key Extraction

The vulnerability of the DHcheckpubkey function in the crypto/dh/dhcheck.c file of the OpenSSL library is related to errors in gathering input data for the Diffie-Hellman algorithm. Exploiting this vulnerability could allow a remote attacker to obtain the secret key by repeatedly using the...

SUSE SLED11 / SLES11 Security Update : libssh2_org (SUSE-SU-2016:0723-1)

This update for libssh2org fixes the following issues : - Add SHA256 support for DH group exchange fate320343, bsc961964 - fix CVE-2016-0787 bsc967026 - Weakness in diffie-hellman secret key generation lead to much shorter DH groups then needed, which could be used to retrieve server keys. Note...

openSUSE Security Update : libssh (openSUSE-2016-328)

This update for libssh fixes the following issues : - CVE-2016-0739: Fix Weakness in diffie-hellman secret key generation. bsc965875 This update was imported from the SUSE:SLE-12:Update update project. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in...

DEBIAN-CVE-2016-1978

Use-after-free vulnerability in the ssl3HandleECDHServerKeyExchange function in Mozilla Network Security Services NSS before 3.21, as used in Mozilla Firefox before 44.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact by making an SSL 1 DHE or 2 ECD...

libssh2 Security Bypass Vulnerability

libssh2 is a client-side C library for implementing the SSH2 protocol. A security vulnerability exists in libssh2 that allows remote attackers to exploit vulnerabilities and cause the SSHv2 Diffie-Hellman handshake to use insecure random parameters...

UBUNTU-CVE-2016-1978

Use-after-free vulnerability in the ssl3HandleECDHServerKeyExchange function in Mozilla Network Security Services NSS before 3.21, as used in Mozilla Firefox before 44.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact by making an SSL 1 DHE or 2 ECD...

SUSE-SU-2016:0718-1 Security update for libssh2_org

This update for libssh2org fixes the following issues: Security issue fixed: - CVE-2016-0787 bsc967026: Weakness in diffie-hellman secret key generation lead to much shorter DH groups then needed, which could be used to retrieve server keys. A feature was added: - Support of SHA256 digests for DH...

Scientific Linux Security Update : libssh2 on SL6.x, SL7.x i386/x86_64 (20160310)

A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters. CVE-2016-0787 After installing thes...

Oracle: Security Advisory (ELSA-2016-0428)

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...

RedHat Update for libssh2 RHSA-2016:0428-01

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...

CentOS Update for libssh2 CESA-2016:0428 centos7

Check the version of libssh2 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 scriptoid"1.3.6.1.4.1.25623.1.0.882419";...

CentOS 6 / 7 : libssh2 (CESA-2016:0428)

Updated libssh2 packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availab...

OracleVM 3.3 / 3.4 : libssh2 (OVMSA-2016-0035)

The remote OracleVM system is missing necessary patches to address critical security updates : - use secrects of the appropriate length in Diffie-Hellman CVE-2016-0787 - fix basic functionality of libssh2 in FIPS mode 968575 %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The package checks ...

libssh2 security update

CentOS Errata and Security Advisory CESA-2016:0428 Updated libssh2 packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score,...

Moderate: Red Hat Security Advisory: libssh2 security update

Updated libssh2 packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is availab...

libssh2: bits/bytes confusion resulting in truncated Diffie-Hellman secret length

A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters...

libssh2 security update

1.4.2-2.el67.1 - use secrects of the appropriate length in Diffie-Hellman CVE-2016-0787 1.4.2-2 - fix basic functionality of libssh2 in FIPS mode 968575...

proftpd -- vulnerability in mod_tls

MITRE reports: The modtls module in ProFTPD before 1.3.5b and 1.3.6 before 1.3.6rc2 does not properly handle the TLSDHParamFile directive, which might cause a weaker than intended Diffie-Hellman DH key to be used and consequently allow attackers to have unspecified impact via unknown vectors...

FreeBSD : libssh -- weak Diffie-Hellman secret generation (6b3591ea-e2d2-11e5-a6be-5453ed2e2b49)

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 102...

Fedora 23 : libssh2-1.6.0-4.fc23 (2016-215a2219b1)

During the SSHv2 handshake when libssh2 is to get a suitable value for 'group order' in the Diffle Hellman negotiation, it would pass in number of bytes to a function that expected number of bits. This would result in the library generating numbers using only an 8th the number of random bits than...