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Red Hat Bugzilla – Attachment 616700 Details for
Bug 859448
CVE-2012-4453 dracut: Creates initramfs images with world-readable permissions (information disclosure)
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[patch]
Change umask before creating $outfile
0001-Create-the-new-initramfs-with-umask-of-077.patch (text/plain), 733 bytes, created by
Peter Jones
on 2012-09-24 19:23:52 UTC
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Description:
Change umask before creating $outfile
Filename:
MIME Type:
Creator:
Peter Jones
Created:
2012-09-24 19:23:52 UTC
Size:
733 bytes
patch
obsolete
>From e9fb5dcd3a50d3779517e45b4e9b3eee8ca84655 Mon Sep 17 00:00:00 2001 >From: Peter Jones <pjones@redhat.com> >Date: Mon, 24 Sep 2012 15:22:08 -0400 >Subject: [PATCH] Create the new initramfs with umask of 077. > >Non root users should not be able to read the contents of the initramfs. > >Resolves: rhbz#859448 >--- > dracut.sh | 1 + > 1 file changed, 1 insertion(+) > >diff --git a/dracut.sh b/dracut.sh >index afd076a..88d4a0d 100755 >--- a/dracut.sh >+++ b/dracut.sh >@@ -1005,6 +1005,7 @@ if [[ $do_hardlink = yes ]] ; then > fi > > dinfo "*** Creating image file ***" >+umask 077 > if ! ( cd "$initdir"; find . |cpio -R 0:0 -H newc -o --quiet| \ > $compress > "$outfile"; ); then > dfatal "dracut: creation of $outfile failed" >-- >1.7.11.4 >
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