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Date: Tue, 24 Nov 2015 12:16:55 -0500 (EST)
From: cve-assign@...re.org
To: carnil@...ian.org
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE Request: IPTables-Parse: Use of predictable names for temporary files

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> https://github.com/mtrmac/IPTables-Parse/commit/b400b976d81140f6971132e94eb7657b5b0a2b87
> https://metacpan.org/source/MRASH/IPTables-Parse-1.6/Changes

> - _iptout => $args{'iptout'} || '/tmp/ipt.out' . $$,
> - _ipterr => $args{'ipterr'} || '/tmp/ipt.err' . $$,
> + _iptout => $args{'iptout'} || mktemp('/tmp/ipt.out.XXXXXX'),
> + _ipterr => $args{'ipterr'} || mktemp('/tmp/ipt.err.XXXXXX'),

Use CVE-2015-8326 for the vulnerability with the above fix.


> If a user manually overrides the temporary file
> locations with the 'iptout' and 'ipterr' hash keys, it is recommended to
> not use predictable names either.

> - 'iptout' => '/tmp/iptables.out',
> - 'ipterr' => '/tmp/iptables.err',

The deletion of the /tmp/iptables.out and /tmp/iptables.err lines is a
documentation change. In some cases, there can be a CVE ID when
documentation indicates an unsafe way to use a product, and a CVE ID
for documentation would typically be separate from a CVE ID for code.
Here, however, there is no CVE ID for the documentation change. We
feel that a reader's most likely interpretation of those lines was
simply that configuration was possible, not that it was a good
configuration for a multi-user system. In general, it seems that a CVE
ID for documentation would be more useful if a documented usage
example were dangerous in an unexpected or subtle way.

- -- 
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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