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Date: Thu,  7 Jan 2016 18:55:25 -0500 (EST)
From: cve-assign@...re.org
To: xiaoqixue_1@....com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE request --  NULL dereference in libdwarf

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> we report  a NULL dereference in libdwarf  which is found by Qixue Xiao.
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1294264

>> https://bugzilla.redhat.com/show_bug.cgi?id=1294264#c2

>> The problem is that the debug_abbrev section is marked as NOBITS in
>> the ELF file - in other words as a zero-init section rather than a
>> section with contents in the file.

>> That is clearly bogus, but obviously shouldn't crash

>>> http://www.prevanders.net/dwarf.html

>>> Work In Progress 2015-12-30

>>> Thanks to Tom Hughes for bringing a problem reading a
>>> badly-damaged (fuzzed) elf object to my attention: now libdwarf
>>> gets an error not a coredump.

>>>> https://github.com/tomhughes/libdwarf/commit/11750a2838e52953013e3114ef27b3c7b1780697

Use CVE-2015-8750.

- -- 
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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