[Bug 753955] CVE-2011-4114 perl-PAR-Packer: insecure temporary directory handling

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Thu Dec 1 14:18:19 UTC 2011


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https://bugzilla.redhat.com/show_bug.cgi?id=753955

Petr Pisar <ppisar at redhat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ppisar at redhat.com

--- Comment #2 from Petr Pisar <ppisar at redhat.com> 2011-12-01 09:18:18 EST ---
`PAR' (<http://search.cpan.org/~rschupp/PAR/>, packaged as perl-PAR in Fedora)
author recognized this vulnerability in PAR too (this is related but different
piece of code from PAR::Packer) and fixed it in version 1.003:

[Changes for 1.003 - Nov 28, 2011]
  -  RT #69560/CVE-2011-4114: PAR packed files are extracted to unsafe
     and predictable temporary directories
     (Note: this bug was originally reported against PAR::Packer, but
     it applies to PAR as well)
     - create parent of cache directory (i.e. /tmp/par-USER) with mode 0700
     - if it already exists, make sure that (and bail out if not)
       - it's not a symlink
       - it's mode 0700
       - it's owned by USER

Fixed perl-PAR version is available in F17 only at this moment.

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