Micali-Schnorr Generator (MS-DRBG) Part III - Zero Knowledge Proof Wanted!!

See also Part I and Part II of this series This is going to be a short blog post about the infamous Micali-Schnorr Random Number Generator MS-DRBG. See Part I and Part II of this series for more information about this topic. WHO: NIST published the specification for Micali-Schnorr Random Number...

Overflow In Multiplication Procedure

OpenSSL is vulnerable to an overflow error in AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. This bug can be used to compromise private key information for certain situations and DH1024. It does affect processors supporting AVX2 but not ADX extensions e.g.,...

OpenSSL -- multiple vulnerabilities

The OpenSSL project reports: Constructed ASN.1 types with a recursive definition could exceed the stack CVE-2018-0739 Constructed ASN.1 types with a recursive definition such as can be found in PKCS7 could eventually exceed the stack given malicious input with excessive recursion. This could resu...

OpenSSL 1.1.0 < 1.1.0h Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 1.1.0h. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.1.0h advisory. - Constructed ASN.1 types with a recursive definition such as can be found in PKCS7 could eventually exceed the stack given maliciou...

BSA-2018-528

Security Advisory ID : BSA-2018-528 Component : OpenSSL Revision : 1.0: Final There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this...

OpenSSL Overflow Vulnerability (20171207, 20180327) - Windows

OpenSSL is prone to an overflow bug. Copyright C 2017 Greenbone Networks GmbH 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-or-later This program is free software; you can redistribute it...

Buffer overflow

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

ALPINE-CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

CVE-2017-3738 is an overflow bug in the AVX2 Montgomery multiplication used for 1024-bit moduli in OpenSSL. The issue affects x86_64 builds with AVX2 (not ADX) and can, in very unlikely cases, enable private-key recovery on affected architectures. OpenSSL 1.0.2n fixes the flaw; OpenSSL 1.1.0 is n...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

CVE-2017-3738

There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. 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. Attack...

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...

SSL/TLS Diffie-Hellman Modulus <= 1024 Bits (Logjam)

The remote host allows SSL/TLS connections with one or more Diffie-Hellman moduli less than or equal to 1024 bits. Through cryptanalysis, a third party may be able to find the shared secret in a short amount of time depending on modulus size and attacker resources. This may allow an attacker to...

openssh security, bug fix and enhancement update

6.6.1p1-11 + 0.9.3-9 - fix direction in CRYPTOSESSION audit message 1171248 6.6.1p1-10 + 0.9.3-9 - add new option GSSAPIEnablek5users and disable using /.k5users by default CVE-2014-9278 1169843 6.6.1p1-9 + 0.9.3-9 - log via monitor in chroots without /dev/log 1083482 6.6.1p1-8 + 0.9.3-9 - increa...

Moderate: Red Hat Security Advisory: openssh security, bug fix and enhancement update

Updated openssh packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores, which give...

Fedora 19 : openssh-6.2p2-8.fc19 (2014-6569)

environment variables with embedded '=' or '0' characters are now ignored - prevents a server from skipping SSHFP lookup and forcing a new-hostkey dialog by offering only certificate keys - /etc/ssh/moduli is readable by all now - ssh-copy-id is run in so called legacy mode when SSHCOPYIDLEGACY...