2014-4-25

CVE-2014-0160 Heartbleed Vul Analysis && … 2014-11-5 · 1. Heartbleed漏洞简介 从本质上说，这个漏洞的起因是一个操作系统基础软件库OPENSSL在实现TLS/DTLS heartbeat extension (RFC6520) 时存在代码bug，导致越权信息泄漏 The Heartbleed Bug is a serious vulnerability in the popular OpenSSL Heartbleed bug find triggers OpenSSL security advisory 2014-4-8 · A flaw called Heartbleed in OpenSSL, which is a software library used for the protection and security of millions of websites, was uncovered by Neel Mehta of Google Security, who first reported it to the OpenSSL team, triggering Monday's release of a fix for the bug along with a security advisory. Dated Monday, the OpenSSL security advisory said the flaw involved "a missing bounds check in the

Heartbleed - 知乎

Heartbleed Bug in OpenSSL Fixed on VDW Websites … What is Heartbleed Bug? Officially called CVE-2014-0160, it was named Heartbleed Bug by security firm Codenomicon. They posted a comprehensive run down on the bug for techies. The bug is a flaw in the Secure Socket Layer (SSL), an open source encryption standard that is used by a majority of websites.

The bug has been open in OpenSSL for two years – from December 2011 and was introduced in stable releases starting with OpenSSL 1.0.1. When an attacker can reach a vulnerable service he can abuse the TLS heartbeat extension to retrieve arbitrary chunks of memory by exploiting a missing bounds check.

The Heartbleed Bug is a serious vulnerability in the popular OpenSSL cryptographic software library. This weakness allows stealing the information protected, under normal conditions, by the SSL/TLS encryption used to secure the Internet. Heartbleed is a security bug in the OpenSSL cryptography library, which is a widely used implementation of the Transport Layer Security (TLS) protocol. It was introduced into the software in 2012 and publicly disclosed in April 2014. Heartbleed may be exploited regardless of whether the vulnerable OpenSSL instance is running as a TLS server or What is the Heartbleed bug, how does it work and how was it fixed? The mistake that caused the Heartbleed vulnerability can be traced to a single line of code in OpenSSL, an open source code library. OpenSSL versions 1.0.1 through 1.0.1f contain a flaw in its implementation of the TLS/DTLS heartbeat functionality. This flaw allows an attacker to retrieve private memory of an application that uses the vulnerable OpenSSL library in chunks of 64k at a time. While the Heartbleed bug isn't a flaw with certificates, passwords, or even the TLS protocol itself, the exploitation of the bug can lead to compromised private keys and other sensitive data. The Heartbleed bug is present in OpenSSL versions 1.0.1 through 1.0.1f as well as 1.0.2 beta. Apr 09, 2014 · Heartbleed OpenSSL vulnerability: A technical remediation OpenSSL released an bug advisory about a 64kb memory leak patch in their library. The bug has been assigned CVE-2014-0160 TLS heartbeat