CVE-2011-1945

The CVE-2011-1945 entry concerns the ECC subsystem in OpenSSL 1.0.0d and earlier, where ECDSA used for the ECDHE_ECDSA cipher suite does not properly implement curves over binary fields. This weakness can enable context-dependent attackers to recover private keys via timing attacks and lattice ca...

CVE-2011-1945

The elliptic curve cryptography ECC subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm ECDSA is used for the ECDHEECDSA cipher suite, does not properly implement curves over binary fields, which makes it easier for context-dependent attackers to determine...

Three Questions for Billy Brumley on the OpenSSL Timing Attack

Timing attacks have been a problem for designers of cryptosystems–as well as for people implementing those systems–for a long time. They’ve plagued just about every popular system, and although practical attacks have been demonstrated many times, the problem and what can be done to defend against...

OpenSSL leaks ECDSA private key through a remote timing attack

Overview The OpenSSL ladder implementation for scalar multiplication of points on elliptic curves over binary fields is susceptible to a timing attack vulnerability. This vulnerability can be used to steal the private key of a TLS server that authenticates with ECDSA signatures and binary curves...

Sony PlayStation 3 hacked, PS3 jailbreak Fail0verflow method !

Sony PlayStation 3 hacked, PS3 jailbreak Fail0verflow method. Sony PlayStation 3 has successfully been hacked by a team of hackers named fail0verflow thanks to its poor public key cryptography. The hacker group demonstrated their hacking tricks at the Chaos Communication Conference 27C3 in 45...

Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : openssl vulnerability (USN-704-1)

It was discovered that OpenSSL did not properly perform signature verification on DSA and ECDSA keys. If user or automated system connected to a malicious server or a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to view sensitive information. Note...

SOL9889 - NTP vulnerability CVE-2009-0021

Description NTP may not properly check the return value from the OpenSSL EVPVerifyFinal function, which may allow a remote attacker to bypass validation of the certificate chain by way of a malformed SSL/TLS signature for DSA and ECDSA keys. Note: This is a similar vulnerability to CVE-2008-5077...

VMSA-2009-0004:ESX Service Console updates for openssl, bind, and vim

VMSA-2009-0004.3 ESX Service Console updates for openssl, bind, and vim VMware Security Advisory VMware Security Advisory Advisory ID: VMSA-2009-0004.3 VMware Security Advisory Synopsis: ESX Service Console updates for openssl, bind, and vim VMware Security Advisory Issue date: 2009-03-31 VMware...

GLSA-200902-02 : OpenSSL: Certificate validation error

The remote host is affected by the vulnerability described in GLSA-200902-02 OpenSSL: Certificate validation error The Google Security Team reported that several functions incorrectly check the result after calling the EVPVerifyFinal function, allowing a malformed signature to be treated as a goo...

OpenSSL / ntp / bind / boinc certificate validation cryptographic vulnerabilities

Multiple vulnerabilities in SSL/TLS DSA/ECDSA certificate chain validations...

ntp incorrectly checks for malformed signatures

NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVPVerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to...

Gale EVP_VerifyFinal() Security Bypass Vulnerability

The host is running Gale and is prone to security bypass vulnerability. OpenVAS Vulnerability Test $Id: gbgalesecbypassvuln.nasl 5656 2017-03-21 11:03:12Z cfi $ Gale EVPVerifyFinal Security Bypass Vulnerability Authors: Sharath S Copyright: Copyright c 2009 Greenbone Networks GmbH,...

Gale EVP_VerifyFinal() Security Bypass Vulnerability

Gale is prone to a security bypass vulnerability. SPDX-FileCopyrightText: 2009 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...

NTP EVP_VerifyFinal() Security Bypass Vulnerability

This host has NTP installed and is prone to security bypass vulnerability. OpenVAS Vulnerability Test $Id: gbntpsecbypassvuln.nasl 7573 2017-10-26 09:18:50Z cfischer $ NTP EVPVerifyFinal Security Bypass Vulnerability Authors: Chandan S Copyright: Copyright c 2009 Greenbone Networks GmbH,...

ISC BIND OpenSSL DSA_verify() Security Bypass Vulnerability

ISC BIND is prone to a security bypass vulnerability. SPDX-FileCopyrightText: 2009 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 CPE = "cpe:/a:isc:bind"; ifdescription...

Slackware 11.0 / 12.0 / 12.1 / 12.2 / current : openssl (SSA:2009-014-01)

New openssl packages are available for Slackware 11.0, 12.0, 12.1, 12.2, and -current to fix a security issue when connecting to an SSL/TLS server that uses a certificate containing a DSA or ECDSA key. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in...

openssl

New openssl packages are available for Slackware 11.0, 12.0, 12.1, 12.2, and -current to fix a security issue when connecting to an SSL/TLS server that uses a certificate containing a DSA or ECDSA key. More details about this issue may be found here: http://www.openssl.org/news/secadv20090107.txt...

Ubuntu: Security Advisory (USN-704-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2009 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...

Ubuntu USN-704-1 (openssl)

The remote host is missing an update to openssl announced via advisory USN-704-1. It was discovered that OpenSSL did not properly perform signature verification on DSA and ECDSA keys. If user or automated system connected to a malicious server or a remote attacker were able to perform a...

[oCERT-2008-016] Multiple OpenSSL signature verification API misuses

2008-016 multiple OpenSSL signature verification API misuse Description: Several functions inside the OpenSSL library incorrectly check the result after calling the EVPVerifyFinal function. This bug allows a malformed signature to be treated as a good signature rather than as an error. This issue...