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Date: Mon, 22 Aug 2016 16:55:56 -0400 (EDT)
From: cve-assign@...re.org
To: carnil@...ian.org
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE Request: lshell: shell outbreak vulnerabilities via bad syntax parse and multiline commands

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> 1/ Shell outbreak due to bad syntax parse
>    - https://github.com/ghantoos/lshell/issues/147
>    - https://bugs.debian.org/834949

Use CVE-2016-6902.


> 2/ Shell outbreak with multiline commands
>    - https://github.com/ghantoos/lshell/issues/149
>    - Fix: https://github.com/ghantoos/lshell/commit/e72dfcd1f258193f9aaea3591ecbdaed207661a0
>    - https://bugs.debian.org/834946

Use CVE-2016-6903.


https://bugs.debian.org/834949 and https://bugs.debian.org/834946 also
mention "Command parser in this shell is beyound of recovery." This
suggests that other vulnerabilities may be fixed at the same time as
issues/147, or that other vulnerabilities may be discovered. In
particular,
https://github.com/ghantoos/lshell/issues/147#issuecomment-241366750
mentions a different attack methodology. At least for now,
https://github.com/ghantoos/lshell/issues/147#issuecomment-241366750
is within the scope of CVE-2016-6902. It is difficult to predict what
other CVE IDs may be needed until there is further vendor followup
about issues/147.

- -- 
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
  http://cve.mitre.org/cve/request_id.html ]
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