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...

DEBIAN-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 ServerKeyExchange Message Handling Remote Denial of Service Vulnerability

OpenSSL is an open source implementation of SSL for strong encryption of network communications. A security vulnerability exists in OpenSSL, where a remote attacker submitting a special anonymous DH encryption suite of ServerKeyExchange messages can crash the target service if the p-value is set ...

UBUNTU-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...

CVE-2015-3193

The Montgomery squaring implementation in crypto/bn/asm/x8664-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x8664 platform, as used by the BNmodexp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key...

UBUNTU-CVE-2015-3193

The Montgomery squaring implementation in crypto/bn/asm/x8664-mont5.pl in OpenSSL 1.0.2 before 1.0.2e on the x8664 platform, as used by the BNmodexp function, mishandles carry propagation and produces incorrect output, which makes it easier for remote attackers to obtain sensitive private-key...

ssl-dh-params NSE Script

Weak ephemeral Diffie-Hellman parameter detection for SSL/TLS services. This script simulates SSL/TLS handshakes using ciphersuites that have ephemeral Diffie-Hellman as the key exchange algorithm. Diffie-Hellman MODP group parameters are extracted and analyzed for vulnerability to Logjam CVE...

libreswan Denial of Service Vulnerability (CNVD-2015-07581)

libreswan is a VPN based on IPSEC and IKE security protocol implementation of free open source software . A denial of service vulnerability exists in libreswan versions prior to 3.15 and Openswan versions prior to 2.6.45. Allows remote attackers to cause a denial of service via a DH g ^ x zero...

Bouncy Castle Java library Information Disclosure Vulnerability

Legion of the Bouncy Castle Java library is an open source lightweight password package for the Java platform from the Australian company Legion of the Bouncy Castle. An information disclosure vulnerability exists in versions of the Legion of the Bouncy Castle Java library prior to 1.51, which...

CVE-2015-7940

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman ECDH key exchanges, aka an "invalid curve attack."...

Information disclosure

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman ECDH key exchanges, aka an "invalid curve attack."...

CVE-2015-7940

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman ECDH key exchanges, aka an "invalid curve attack."...

CVE-2015-7940

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman ECDH key exchanges, aka an "invalid curve attack."...

openswan: denial of service via IKE daemon restart when receiving a bad DH gx value

A flaw was discovered in the way Libreswan's IKE daemon processed IKE KE payloads. A remote attacker could send specially crafted IKE payload with a KE payload of g^x=0 that, when processed, would lead to a denial of service daemon crash...

SUSE SLES12 Security Update : apache2 (SUSE-SU-2015:1851-1) (Logjam)

The Apache2 webserver was updated to fix several issues : Security issues fixed : - The chunked transfer coding implementation in the Apache HTTP Server did not properly parse chunk headers, which allowed remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to...

Fewer IPsec VPN Connections at Risk to Weak Diffie-Hellman

A challenge has been made against one of the conclusions in a potentially blockbuster academic paper on cryptographic weaknesses that may be the open door through which intelligence agencies are breaking encrypted connections. The paper, “Imperfect Forward Secrecy: How Diffie-Hellman Fails in...

Mike Mimoso and Chris Brook Discuss the Diffie-Hellman News, the Security of Android Devices, and More

Mike Mimoso and Chris Brook discuss the news of the week – how a weakness in the Diffie-Hellman protocol could be the key to breaking crypto, a paper that claims 85 percent of Android devices contain at least one critical vulnerability, and the Netgear debacle. Download: newswrap10-16-15.mp3 Musi...

NSA Exploiting Weak Diffie-Hellman Primes to Break Crypto

The great mystery since the NSA and other intelligence agencies’ cyber-spying capabilities became watercooler fodder has not been the why of their actions, but the how? For example, how are they breaking crypto to decode secure Internet communication? A team of cryptographers and computer...

How NSA successfully Broke Trillions of Encrypted Connections

Yes, it seems like the mystery has been solved. We are aware of the United States National Security Agency NSA powers to break almost unbreakable encryption used on the Internet and intercept nearly Trillions of Internet connections – thanks to the revelations made by whistleblower Edward Snowden...

SSH Diffie-Hellman Modulus <= 1024 Bits (Logjam)

The remote SSH server allows connections with one or more Diffie-Hellman moduli less than or equal to 1024 bits. Through cryptanalysis, a third party can find the shared secret in a short amount of time depending on modulus size and attacker resources. This allows an attacker to recover the...