openssl: Integer overflow in RSAZ modular exponentiation on x86_64

An integer overflow was found in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. As per upstream: No EC algorithms are affected. Attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are...

openssl: Integer overflow in RSAZ modular exponentiation on x86_64

An integer overflow was found in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. As per upstream: No EC algorithms are affected. Attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are...

openssl: Integer overflow in RSAZ modular exponentiation on x86_64

An integer overflow was found in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. As per upstream: No EC algorithms are affected. Attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are...

PT-2021-6718

Name of the Vulnerable Software and Affected Versions Arm Mbed TLS versions prior to 2.23.0 Description The issue is related to a side channel in modular exponentiation, which could disclose an RSA private key used in a secure enclave. This is due to a dependency of the instruction timing on the...

Debian DLA-2266-1 : nss security update

Several vulnerabilities were fixed in nss, the Network Security Service libraries. CVE-2020-12399 Force a fixed length for DSA exponentiation. CVE-2020-12402 Side channel vulnerabilities during RSA key generation. For Debian 8 'Jessie', these problems have been fixed in version 2:3.26-1+debu8u11...

The vulnerability of the BN_mod_exp function (crypto/bn/asm/x86_64-mont5.pl) in the OpenSSL library, which allows a perpetrator to gain unauthorized access to confidential data

The vulnerability of the BNmodexp function crypto/bn/asm/x8664-mont5.pl in the OpenSSL library is related to the lack of protection for service data. Exploiting this vulnerability could allow a remote attacker to gain unauthorized access to confidential data...

EulerOS 2.0 SP2 : libgcrypt (EulerOS-SA-2020-1672)

According to the versions of the libgcrypt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proxima...

SUSE SLES12 Security Update : openssl (SUSE-SU-2020:0474-1)

This update for openssl fixes the following issues : Security issue fixed : CVE-2019-1551: Fixed an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli bsc1158809. Non-security issue fixed: Fixed a crash in BNcopy bsc1160163. Note that Tenable Networ...

Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2019-2699)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 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...

SUSE SLED15 / SLES15 Security Update : openssl-1_0_0 (SUSE-SU-2020:0064-1)

This update for openssl-100 fixes the following issues : Security issue fixed : CVE-2019-1551: Fixed an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli bsc1158809. Note that Tenable Network Security has extracted the preceding description block...

SUSE-SU-2020:0064-1 Security update for openssl-1_0_0

This update for openssl-100 fixes the following issues: Security issue fixed: - CVE-2019-1551: Fixed an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli bsc1158809...

OpenSSL 1.0.2 < 1.0.2u Vulnerability

The version of OpenSSL installed on the remote host is prior to 1.0.2u. It is, therefore, affected by a vulnerability as referenced in the 1.0.2u advisory. - There is an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are...

SUSE-SU-2020:0028-1 Security update for openssl-1_0_0

This update for openssl-100 fixes the following issues: Security issue fixed: - CVE-2019-1551: Fixed an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli bsc1158809...

MGASA-2020-0023 Updated openssl packages fix security vulnerability

Updated compat-openssl10 and openssl packages fix security vulnerability: There is an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and...

Integer Overflow

OpenSSL is vulnerable to integer overflows. It exists due to a mishandling of overflow in rsaz512sqr for the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli...

Buffer overflow

There is an overflow bug in the x6464 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are...

CVE-2019-1551

CVE-2019-1551 refers to an overflow bug in the x64_64 Montgomery squaring procedure used in OpenSSL during exponentiation with 512-bit moduli. OpenSSL notes no impact to EC, while DH512 attacks are only just feasible under certain conditions. Public disclosures and advisories confirm the issue an...

CVE-2015-0837

The mpipowm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."...

DEBIAN-CVE-2015-0837

The mpipowm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."...

Design/Logic Flaw

The mpipowm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."...