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Date: Wed, 21 Mar 2012 11:19:38 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: Ludwig Nussel <ludwig.nussel@...e.de>
CC: oss-security@...ts.openwall.com, Zubin Mithra <zubin.mithra@...il.com>,
        Dhanesh k <dhanesh1428@...il.com>
Subject: Re: CVE-Request taglib vulnerabilities

On 03/21/2012 09:42 AM, Ludwig Nussel wrote:
> Zubin Mithra wrote:
>> [...]
>> The issues which are present in the latest "release" but not in the current
>> development head were :-
>>
>> [3] Lack of sanity checks of fields which were read, and were used for
>> allocating memory; crafted files would lead of application crash.
> 
> Not an issue according to upstream:
> http://mail.kde.org/pipermail/taglib-devel/2012-March/002187.html

Shouldn't it simply say "file to large" or "unable to allocate blah"
something rather than crashing? I assume by "large" file the file
doesn't actually need to be large, just the header information needs to
claim it is large?

>> [4] A one bit change in a working ogg file would cause a thread to loop
>> infinitely.
> 
> http://mail.kde.org/pipermail/taglib-devel/2012-March/002191.html
> https://github.com/taglib/taglib/commit/b3646a07348ffa276ea41a9dae03ddc63ea6c532

Has this been confirmed? Does the looping thread actually cause a DoS,
simply slow down the application a bit, or?

> cu
> Ludwig



-- 
Kurt Seifried Red Hat Security Response Team (SRT)

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