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[{"id":483,"title":"Self-taught through trial and error","votes":548,"type":"x","order":1,"pct":78.51,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.3,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.87,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.32,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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Comprehensive Study on Buffer Overflows and Linux Defense Strategies

A technical overview of heap and buffer overflows, Linux tools that can be used to reduce their risk, the kinds of exploits these tools can prevent, and more. "This study deals with the various kinds of overflows (heap, stack) to understand how they work and how they may be used to execute malicious code. . .. A technical overview of heap and buffer overflows, Linux tools that can be used to reduce their risk, the kinds of exploits these tools can prevent, and more. "This study deals with the various kinds of overflows (heap, stack) to understand how they work and how they may be used to execute malicious code ; then it focuses on a few Linux solutions (Grsecurity features, Libsafe...), and explains how they behave, which kinds of exploits they prevent respectively... It aims at presenting an overview of generic solutions which may be applied to a whole system, although it is a non-exhaustive one." On november 2, 1988 a new form of threat appeared with the Morris Worm, also known as the Internet Worm. This famous event caused heavy damages on the internet, by using two common unix programs, sendmail and fingerd. This was possible by exploiting a buffer overflow in fingerd. This is probably one of the most outstanding attacks based on buffer overflows. This kind of vulnerability has been found on largely spread and used daemons such as bind, wu-ftpd, or various telnetd implementations, as well as on applications such as Oracle or MS Outlook Express... The link for this article located at Pierre-Alain FAYOLLE, Vincent GLAUME is no longer available. . Heap and buffer overflows are prevalent vulnerabilities from improper memory handling. Mitigation on Linux includes GDB, Valgrind, ASan, SSP, Fortify Source, ASLR, and SELinux/AppArmor. Buffer Overflow Mitigation,Linux Security Tools,Exploit Reduction Techniques,System Defense Strategies. . LinuxSecurity.com Team

Calendar 2 Mar 27, 2002 User Avatar LinuxSecurity.com Team Security Projects
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[{"id":483,"title":"Self-taught through trial and error","votes":548,"type":"x","order":1,"pct":78.51,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.3,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.87,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.32,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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