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Security Linux News for Apr 15, 2001

  • LinuxFocus.org: Avoiding security holes: memory, stack and functions, shellcode (Apr 15, 2001, 22:00)
    "This article and the next one show a widespread type of attack, the buffer overflow. First we will study the memory structure of a running application, and then we'll write a minimal piece of code allowing to start a shell (shellcode)."

  • Debian Security Advisory: exuberant-ctags uses insecure temporary files (Apr 15, 2001, 15:30)
    "Colin Phipps discovered that the exuberant-ctags packages as distributed with Debian GNU/Linux 2.2 creates temporary files insecurely. This has been fixed in version 1:3.2.4-0.1 of the Debian package, and upstream version 3.5."

  • ITWorld.com: Make SSH do more (Apr 15, 2001, 15:00)
    "Because Linux is a deep operating system, we often use a miniscule portion of a tool's features. I, for one, use awk primarily to isolate columns that cut can't find, though in fact awk is a full-fledged text-processing language. There's nothing wrong with that approach -- actually it's unavoidable -- but it benefits us to delve more deeply into the advantages a single program can offer."