Updated socat packages fix security vulnerability

In socat before 2.0.0-b9, in the OpenSSL address implementation, the hard coded 1024 bit DH p parameter was not prime. It may be possible for an eavesdropper to recover the shared secret from a key exchange CVE-2016-2217. In socat before 2.0.0-b9, a stack overflow vulnerability was found that can...

SUSE-SU-2016:0344-1 Security update for socat

This update for socat fixed the following issues: - bsc964844: Fixed security advisory 8, Stack overflow in parser, http://www.openwall.com/lists/oss-security/2016/02/01/5. - bsc938913: Improved resilience against Logjam attacks CVE-2015-4000 by increasing the size of the default DH group from 51...

Ubuntu: Security Advisory (USN-2883-1)

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...

OpenSSL CVE-2 0 1 6-0 7 0 1 Private Key Recovery attack vulnerability analysis-vulnerability warning-the black bar safety net

by: au2o3t @3 6 0 Cloud Security Team 0x01 Foreword 2 0 1 6 1 2 8, OpenSSL official published number for the CVE-2 0 1 6-0 7 0 1 vulnerabilities. The vulnerability occurs in the OpenSSL 1.0.2 versionOpenSSL 1.0.2 f and later versions not affected, when using the DH algorithm to a different client...

FreeBSD : socat -- diffie hellman parameter was not prime (a52a7172-c92e-11e5-96d6-14dae9d210b8)

socat reports : In the OpenSSL address implementation the hard-coded 1024 bit DH p parameter was not prime. The effective cryptographic strength of a key exchange using these parameters was weaker than the one one could get by using a prime p. Moreover, since there is no indication of how these...

OpenSSL high-risk vulnerabilities allow hackers to decrypt HTTPS traffic（CVE-2 0 1 6-0 7 0 1-a vulnerability warning-the black bar safety net

! The OpenSSL encryption code library defenders are declared fixes a high risk vulnerability. The vulnerability could allow a hacker to access in HTTPS and other secure transport layer, for the encrypted communication to decrypt the key. OpenSSL vulnerability details When various conditions are...

OpenSSL Key Recovery Attack on DH small subgroups (CVE-2016-0701)

Usual Mandatory Disclaimer: IANAC I am not a cryptographer so I might likely end up writing a bunch of mistakes in this blog post... tl;dr The OpenSSL 1.0.2 releases suffer from a Key Recovery Attack on DH small subgroups. This issue got assigned CVE-2016-0701 with a severity of High and OpenSSL...

FreeBSD : openssl -- multiple vulnerabilities (3679fd10-c5d1-11e5-b85f-0018fe623f2b)

OpenSSL project reports : - Historically OpenSSL only ever generated DH parameters based on 'safe' primes. More recently in version 1.0.2 support was provided for generating X9.42 style parameter files such as those required for RFC 5114 support. The primes used in such files may not be 'safe'...

Ubuntu 15.10 : openssl vulnerability (USN-2883-1)

Antonio Sanso discovered that OpenSSL reused the same private DH exponent for the life of a server process when configured with a X9.42 style parameter file. This could allow a remote attacker to possibly discover the server's private DH exponent when being used with non-safe primes. Note that...

Internet Bug Bounty: OpenSSL Key Recovery Attack on DH small subgroups (CVE-2016-0701)

Full write up: http://intothesymmetry.blogspot.ch/2016/01/openssl-key-recovery-attack-on-dh-small.html DH small subgroups CVE-2016-0701 ================================== Severity: High Historically OpenSSL usually only ever generated DH parameters based on "safe" primes. More recently in version...

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...

Vulnerability in OpenSSL - DH small subgroups

Historically OpenSSL usually only ever generated DH parameters based on “safe” primes. More recently in version 1.0.2 support was provided for generating X9.42 style parameter files such as those required for RFC 5114 support. The primes used in such files may not be “safe”. Where an application ...

openssl -- multiple vulnerabilities

OpenSSL project reports: Historically OpenSSL only ever generated DH parameters based on "safe" primes. More recently in version 1.0.2 support was provided for generating X9.42 style parameter files such as those required for RFC 5114 support. The primes used in such files may not be "safe". Wher...

Oracle Linux 6 / 7 : openssl (ELSA-2015-2617)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-2617 advisory. - fix CVE-2015-3194 - certificate verify crash with missing PSS parameter - fix CVE-2015-3195 - X509ATTRIBUTE memory leak - fix CVE-2015-3196 - rac...

FreeBSD : openssl -- multiple vulnerabilities (4c8d1d72-9b38-11e5-aece-d050996490d0)

OpenSSL project reports : - BNmodexp may produce incorrect results on x8664 CVE-2015-3193 - Certificate verify crash with missing PSS parameter CVE-2015-3194 - X509ATTRIBUTE memory leak CVE-2015-3195 - Race condition handling PSK identify hint CVE-2015-3196 - Anon DH ServerKeyExchange with 0 p...

CVE-2015-1794

The ssl3getkeyexchange function in ssl/s3clnt.c in OpenSSL 1.0.2 before 1.0.2e allows remote servers to cause a denial of service segmentation fault via a zero p value in an anonymous Diffie-Hellman DH ServerKeyExchange message...

openssl lib32-openssl: multiple issues

CVE-2015-3193 insecure private key in connection with DHE There is a carry propagating bug in the x8664 Montgomery squaring procedure. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not...

Vulnerability in OpenSSL - BN_mod_exp may produce incorrect results on x86_64

There is a carry propagating bug in the x8664 Montgomery squaring procedure. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible...

openssl -- multiple vulnerabilities

OpenSSL project reports: BNmodexp may produce incorrect results on x8664 CVE-2015-3193 Certificate verify crash with missing PSS parameter CVE-2015-3194 X509ATTRIBUTE memory leak CVE-2015-3195 Race condition handling PSK identify hint CVE-2015-3196 Anon DH ServerKeyExchange with 0 p parameter...

CVE-2015-3240

The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service assertion failure and daemon restart via a zero DH g^x value in a KE payload in a IKE packet...