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AUSCERT External Security Bulletin Redistribution
ESB-2001.231 -- OpenBSD Security Announcement
patch for fts security hole available
13 June 2001
AusCERT Security Bulletin Summary
Product: fts(3) routines
Operating System: OpenBSD
Impact: Reduced Security
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Programs using the fts(3) routines (such as rm, find, and most
programs that take a -R flag) can be tricked into changing into the
wrong directory if the parent dir is changed out from underneath
it. This is similar to the old fts bug but happens when popping
out of directories, as opposed to descending into them.
The fix has also been committed to the 2.8 and 2.9 stable branches.
Note that this is the second version of the patch (though the first
to be announced).
The bug was found by Nick Cleaton; Kris Kennaway and I collaborated
on a fix. Thanks also to Bruce Evans for pointing out a problem
with the initial fix.
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