Design/Logic Flaw

A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software image...

CVE-2018-15374

CVE-2018-15374 describes a digital signature verification bypass in the Cisco IOS XE Software Image Verification feature. An authenticated, local attacker could upload a legitimate-looking but malicious software image or file to an affected device, exploiting improper verification to bypass signa...

Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability

A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software image...

Evidence for the Security of PKCS #1 Digital Signatures

This is interesting research: "On the Security of the PKCS1 v1.5 Signature Scheme": Abstract: The RSA PKCS1 v1.5 signature algorithm is the most widely used digital signature scheme in practice. Its two main strengths are its extreme simplicity, which makes it very easy to implement, and that...

Crypton - Library Consisting Of Explanation And Implementation Of All The Existing Attacks On Various Encryption Systems, Digital Signatures, Hashing Algorithms

Crypton is an educational library to learn and practice Offensive and Defensive Cryptography. It is basically a collection of explanation and implementation of all the existing vulnerabilities and attacks on various Encryption Systems Symmetric and Asymmetric, Digital Signatures, Message...

Offensive and Defensive Cryptography: Crypton

Crypton is an educational library to learn and practice Offensive and Defensive Cryptography. It is basically a collection of explanation and implementation of all the existing vulnerabilities and attacks on various Encryption Systems Symmetric and Asymmetric, Digital Signatures, Message...

OpenSC 0.18.0 Buffer Overflow / Out Of Bounds Read Vulnerability

Multiple issues have been identified in OpenSC, ranging from stack based buffer overflows to out of bounds reads and writes on the heap. They can be triggered by malicious smartcards sending malformed responses to APDU commands. Additionally to those fixes reported here, a lot of minor issues eg...

Partnering with the industry to minimize false positives

Every day, antivirus capabilities in Windows Defender Advanced Threat Protection Windows Defender ATP protect millions of customers from threats. To effectively scale protection, Windows Defender ATP uses intelligent systems that combine multiple layers of machine learning models, behavior-based...

CentOS 7 : gnupg2 (CESA-2018:2181)

An update for gnupg2 is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

CentOS Update for gnupg2 CESA-2018:2181 centos7

Check the version of gnupg2 SPDX-FileCopyrightText: 2018 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 scriptoid"1.3.6.1.4.1.25623.1.0.882921";...

gnupg2 security update

CentOS Errata and Security Advisory CESA-2018:2180 An update for gnupg2 is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity...

Important: Red Hat Security Advisory: gnupg2 security update

An update for gnupg2 is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

[SECURITY] Fedora 27 Update: gnupg-1.4.23-1.fc27

GnuPG GNU Privacy Guard is a GNU utility for encrypting data and creating digital signatures. GnuPG has advanced key management capabilities and is compliant with the proposed OpenPGP Internet standard described in RFC2440. Since GnuPG doesn't use any patented algorithm, it is not compatible with...

[SECURITY] Fedora 28 Update: gnupg-1.4.23-1.fc28

GnuPG GNU Privacy Guard is a GNU utility for encrypting data and creating digital signatures. GnuPG has advanced key management capabilities and is compliant with the proposed OpenPGP Internet standard described in RFC2440. Since GnuPG doesn't use any patented algorithm, it is not compatible with...

[SECURITY] Fedora 28 Update: gnupg2-2.2.8-1.fc28

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440 and the S/MIME standard as described...

[SECURITY] Fedora 27 Update: gnupg2-2.2.8-1.fc27

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440 and the S/MIME standard as described...

[SECURITY] Fedora 28 Update: gnupg-1.4.22-7.fc28

GnuPG GNU Privacy Guard is a GNU utility for encrypting data and creating digital signatures. GnuPG has advanced key management capabilities and is compliant with the proposed OpenPGP Internet standard described in RFC2440. Since GnuPG doesn't use any patented algorithm, it is not compatible with...

GnuPG Flaw in Encryption Tools Lets Attackers Spoof Anyone's Signature

A security researcher has discovered a critical vulnerability in some of the world's most popular and widely used email encryption clients that use OpenPGP standard and rely on GnuPG for encrypting and digitally signing messages. The disclosure comes almost a month after researchers revealed a...

Security Bulletin: IBM WebSphere MQ is affected by a vulnerability in GSKit (CVE-2014-0076)

Summary A vulnerability in GSKit, which is included in IBM WebSphere MQ, can potentially allow key information about certain kinds of binary type Elliptic Curves used in Digital signatures during signing operations. Vulnerability Details CVE-ID:CVE-2014-0076 DESCRIPTION : An attacker running a...

PT-2018-11169 · Cryptolib · Cryptolib

Name of the Vulnerable Software and Affected Versions: cryptlib versions 3.4.4 and earlier Description: The issue allows a memory-cache side-channel attack on DSA and ECDSA signatures, also known as the Return Of the Hidden Number Problem or ROHNP. To discover a key, the attacker needs access to...