SUSE SLED11 Security Update : libssh (SUSE-SU-2016:0622-1)

This update for libssh fixes the following issues : - CVE-2016-0739: Fix Weakness in diffie-hellman secret key generation. bsc965875 Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically...

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...

SUSE SLED12 Security Update : libssh (SUSE-SU-2016:0625-1)

This update for libssh fixes the following issues : - CVE-2016-0739: Fix Weakness in diffie-hellman secret key generation. bsc965875 Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically...

Vulnerabilities in OpenSSL affect AIX

IBM SECURITY ADVISORY First Issued: Wed Mar 2 08:43:07 CST 2016 The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/openssladvisory17.asc https://aix.software.ibm.com/aix/efixes/security/openssladvisory17.asc...

Turing Award — Inventors of Modern Cryptography Win $1 Million Cash Prize

And the Winners of this year's Turing Award are: Whitfield Diffie and Martin E. Hellman. The former chief security officer at Sun Microsystems Whitfield Diffie and the professor at Stanford University Martin E. Hellman won the 2015 ACM Turing Award, which is frequently described as the "Nobel Pri...

libssh2: man-in-the-middle

There is a bits/bytes confusion bug resulting in generation of a significantly 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 and 2048 bits respectively. There ar...

lib32-libssh2: man-in-the-middle

There is a bits/bytes confusion bug resulting in generation of a significantly 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 and 2048 bits respectively. There ar...

Updated libssh packages fix CVE-2016-0739

Updated libssh packages fix security vulnerability: 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...

Debian DLA-426-1 : libssh2 security update

Andreas Schneider reported that libssh2, an SSH2 protocol implementation used by many applications, did not generate sufficiently long Diffie-Hellman secrets. This vulnerability could be exploited by an eavesdropper to decrypt and to intercept SSH sessions. For the oldoldstable distribution...

Debian DSA-3488-1 : libssh - security update

Aris Adamantiadis discovered that libssh, a tiny C SSH library, incorrectly generated a 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 and 2048 bits respectively...

Ubuntu 14.04 LTS : libssh vulnerabilities (USN-2912-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2912-1 advisory. Mariusz Ziulek discovered that libssh incorrectly handled certain packets. A remote attacker could possibly use this issue to cause libssh to crash,...

Debian DLA-425-1 : libssh security update

Aris Adamantiadis of the libssh team discovered that libssh, an SSH2 protocol implementation used by many applications, did not generate sufficiently long Diffie-Hellman secrets. This vulnerability could be exploited by an eavesdropper to decrypt and to intercept SSH sessions. For the oldoldstabl...

[SECURITY] [DSA 3488-1] libssh security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3488-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso February 23, 2016 https://www.debian.org/security/faq -...

[SECURITY] [DSA 3487-1] libssh2 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3487-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso February 23, 2016 https://www.debian.org/security/faq -...

UBUNTU-CVE-2016-0739

libssh before 0.7.3 improperly truncates ephemeral secrets generated for the 1 diffie-hellman-group1 and 2 diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes...

CVE-2016-0739

libssh before 0.7.3 improperly truncates ephemeral secrets generated for the 1 diffie-hellman-group1 and 2 diffie-hellman-group14 key exchange methods to 128 bits, which makes it easier for man-in-the-middle attackers to decrypt or intercept SSH sessions via unspecified vectors, aka a "bits/bytes...

USN-2912-1: libssh vulnerabilities

Mariusz Ziulek discovered that libssh incorrectly handled certain packets. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service. CVE-2015-3146 Aris Adamantiadis discovered that libssh incorrectly generated ephemeral secret keys of 128 bits...

USN-2912-1 libssh vulnerabilities

Mariusz Ziulek discovered that libssh incorrectly handled certain packets. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service. CVE-2015-3146 Aris Adamantiadis discovered that libssh incorrectly generated ephemeral secret keys of 128 bits...

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/...