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Re: CVE Request: multiple bugs found in BFD libraries and Binutils' utilities


From: Thuan Pham <thuanpv () comp nus edu sg>
Date: Fri, 17 Mar 2017 12:56:55 +0800

Dear Agostino,
Thank you very much for your prompt reply. I will choose the suitable bugs
based on your advice and submit to MITRE directly.
Many thanks,
Thuan

On Fri, Mar 17, 2017 at 4:15 AM, Agostino Sarubbo <ago () gentoo org> wrote:

On Friday 17 March 2017 00:58:05 Thuan Pham wrote:
Could you please check whether these bugs are suitable for CVEs?

Thuan,
thanks for sharing.

Since few time the cve requests happens on https://cveform.mitre.org
instead
of here.

From some time of fuzz experience, from multiple cve requests and multiple
feedback from mitre I'd say:
- In any way you are able to crash a library, it needs a cve because it is
supposed to receive multiple inputs.
- Undefined behavior in a library also needs a cve.
- while the bug is in a command line tool:
1) if it is a simple crash like fpe / segv, it is considered just an
inconvenience.
2) if it is an overflow with read of size 1 is also considered an
inconveniece
unless you can demostrate any evidence of damage.
The mentioned cases are not just an inconvenience unless there are common
cases where you know that for example a webapp relies on this command line
tool.
3) if it is an overflow with write access it should have a cve.


@everyone, if you think it is wrong or I missed something feel free to
correct
me.

--
Agostino Sarubbo
Gentoo Linux Developer


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