SUSE CVE-2017-3736

There is a carry propagating bug in the x8664 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. 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...

SUSE CVE-2018-0732

During key agreement in a TLS handshake using a DHE based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This...

SUSE CVE-2018-5383

Bluetooth firmware or operating system software drivers in macOS versions before 10.13, High Sierra and iOS versions before 11.4, and Android versions before the 2018-06-05 patch may not sufficiently validate elliptic curve parameters used to generate public keys during a Diffie-Hellman key...

SUSE CVE-2018-6594

lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data i.e., it does not have semantic security in face of a ciphertext-only attack. The Decisional Diffie-Hellman DDH...

SUSE CVE-2018-6829

cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data i.e., it does not have semantic security in face of a ciphertext-only attack. The Decisional...

SUSE CVE-2020-1968

The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman DH based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted...

SUSE CVE-2020-12413

The Raccoon attack is a timing attack on DHE ciphersuites inherit in the TLS specification. To mitigate this vulnerability, Firefox disabled support for DHE ciphersuites...

SUSE CVE-2020-36475

An issue was discovered in Mbed TLS before 2.25.0 and before 2.16.9 LTS and before 2.7.18 LTS. The calculations performed by mbedtlsmpiexpmod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs...

SUSE CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

K83120834: Diffie-Hellman key agreement protocol weaknesses CVE-2002-20001 & CVE-2022-40735

Security Advisory Description The Diffie-Hellman Key Agreement Protocol allows remote attackers from the client side to send arbitrary numbers that are actually not public keys, and trigger expensive server-side DHE modular-exponentiation calculations, aka a DHEater attack. The client needs very...

New Backdoor Created Using Leaked CIA's Hive Malware Discovered in the Wild

Unidentified threat actors have deployed a new backdoor that borrows its features from the U.S. Central Intelligence Agency CIA's Hive multi-platform malware suite, the source code of which was released by WikiLeaks in November 2017. "This is the first time we caught a variant of the CIA Hive...

Go 1.20 Cryptography

The first second release candidate of Go 1.20 is out!1 This is the first release I participated in as an independent maintainer, after leaving Google to become a professional Open Source maintainer. By the way, thats going great, and Im going to write more about it here soon! Im pretty happy with...

Botan has an unspecified vulnerability

Botan is a library of cryptographic algorithms written in C++. It supports a variety of algorithms such as AES, DES, SHA-1, RSA, DSA and Diffie-Hellman. A security vulnerability exists in Botan versions 1.11.34 and later up to 2.19.3, which stems from a certificate validation error and can be...

CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

UBUNTU-CVE-2022-40735

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

Design/Logic Flaw

The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "appropriately short exponents" can be used when there are adequate subgroup constraints, and these sho...

CVE-2022-40735

CVE-2022-40735 describes a Diffie-Hellman Key Agreement Page vulnerability: long exponents may lead to expensive DHE modular-exponentiation and potential server-side resource consumption. The issue is tied to exponent size under subgroup constraints, with applicability depending on protocol (e.g....