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Date: Wed, 11 Sep 2019 10:55:45 +0300
From: Shlomi Fish <>
Subject: [FD] Insecure tmpdir() use in dbtoepub.rb in docbook /


See -
tmpdir returns the same value everytime and as a result the tmpdirs can
be identical or existing.


Thanks to phaul from #ruby .

There is a patch that seems to work well in the mageia linux package, but
no PoC exploit.

Shlomi Fish

Buddha has the Chuck Norris nature.

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