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3There are enough privilege escalation problems with linux. So yes - malware is possible.Nils– Nils2012-10-08 20:55:48 +00:00Commented Oct 8, 2012 at 20:55
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@Nils - Correct me if I'm wrong but privilege escalation comes from software that was installed by the user and given access to the system. I'm talking about drive by attacks where, say, you visit a web page that downloads/installs/executes without user intervention.Rob– Rob2012-10-08 21:31:18 +00:00Commented Oct 8, 2012 at 21:31
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The software installed might be a png-picture that gets downloaded by the browser provided by the operating system. Now a flaw in the png-library will execute code just because you look at that picture (user-context). That code will use another glibc-fault in combination with a OS-provided suid-root-script to elevate the rights further to the root-account. So yes - it is possible.Nils– Nils2012-10-09 21:08:00 +00:00Commented Oct 9, 2012 at 21:08
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