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Wider Implications of the Red Hat Breach  02 September 2008  Print E-mail
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Source: LinuxWorld - Posted by John P. Forman   
Network Security Reports of data losses and system breaches are almost becoming passe but from time to time events happen that take on a life of their own and have effects far beyond what the initial breach would normally represent. Late last week there was an announcement that key servers belonging to both the Fedora and Red Hat Linux distributions were compromised. With this breach they join the ranks of Ubuntu, Debian and Gentoo as Linux distributions that have suffered severe server breaches. What is the wider significance of the breach to the Fedora and Red Hat Linux distributions that occurred last week? What kind of questions should those responsible for system security be asking themselves in light of this breach? Find out in this informative article.

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Mandriva: Subject: [Security Announce] [ MDVSA-2008:182 ] wordnet  02 September 2008  Print E-mail
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Posted by Benjamin D. Thomas   
Mandrake Rob Holland found several programming errors in WordNet which could lead to the execution or arbitrary code when used with untrusted input (CVE-2008-2149).
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Linux Password Policies  02 September 2008  Print E-mail
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Source: tuxtraining - Posted by Bill Keys   
Host Security Lets start with some basics…. Our Linux system stores its usernames and passwords in a special file : ‘/etc/password’. The passwords in this file are one way encrypted (hash-ed) through a password encryption function called ‘crypt’ using DES as the encryption algorithm. The good thing about ‘hashing’ is that you can not ‘decrypt’ the hashed passwords because the function used for hashing cannot be reversed (one-way traffic). DES generally uses keys (symmetric key cryptography) in which case things can be either encrypted or decrypted, but for encrypting passwords in Linux, only the ‘hashing’ implementation of DES is used. How much do you know about Linux passwords? This article goes into detail about how user's passwords are controlled and handled in Linux.

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Linux Security Week: September 1st, 2008  01 September 2008  Print E-mail
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Source: LinuxSecurity.com Contributors - Posted by Benjamin D. Thomas   
Linux Security Week This week, perhaps the most interesting articles include "Security Configuration Guides," "SSH Key-Based Attacks," and "Protecting Your MySQL Database From SQL Injection Attacks With GreenSQL."

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Debian: New wordnet packages fix arbitrary code execution  01 September 2008  Print E-mail
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Posted by Benjamin D. Thomas   
Debian Rob Holland discovered several programming errors in WordNet, an electronic lexical database of the English language. These flaws could allow arbitrary code execution when used with untrusted input, for example when WordNet is in use as a back end for a web application.
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