On Thu, Jul 9, 2009 at 5:59 PM, Till Maas opensource@till.name wrote:
On Thu July 9 2009, yersinia wrote:
But something one have to pay a security prize on not disabling it : it render impossible to have a centralizzated security integrity management (e.g. rfc.sf.net for
example)
or one have to skip from check the prelink binary. Very bad i think.
You pay a security prize if you disable prelink, because it also performs address space randomization: http://lwn.net/Articles/190139/
Strange enough this authorative refs, imho, not cited prelink as a security feature for aslr :=) http://www.awe.com/mark/blog/200801070918.html
Btw, the reality is more complex this days. Details omitted, this is not a security mailing list.
Regards
Btw. you can also patch the remote integrity checker to use prelink to either get a checksum of the perlinked binary or undo the prelinking before checking it.
Regards Till
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