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Date: Mon, 09 Apr 2012 21:40:54 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE id request for imagemagick, libpng and tiff
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On 04/09/2012 09:31 PM, Nico Golde wrote:
> Hi, * Kurt Seifried <kseifried@...hat.com> [2012-04-10 04:54]:
>> On 04/09/2012 08:31 PM, Nico Golde wrote:
>>> We received 3 bug reports targeting imagemagick, libpng and
>>> tiff crashing on input when used with electric fence indicating
>>> memory errors on handling crafted input. From what I see no CVE
>>> ids have been assigned to these bugs yet.
>>>
>>> Can someone assign ids? libpng:
>>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668082
>>> (apparently fixed in 1.2.48 with a removal of the buggy
>>> function)
>>>
>>> tiff: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668087
>>>
>>> imagemagick:
>>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668075
>>
>> Do any of these crashes occur without electric fence? Also I
>> think Vincent Fourmond <fourmond@...ian.org> stated it
>> succinctly:
>>
>> "On what do you base your claim that it is a user security hole
>> ? While I agree that it is a bug, I fail to see how a crash at
>> the end of a program's execution (cleanup time) necessarily is a
>> user security hole, hence downgrading the severity. Feel free to
>> raise it up again if you have arguments to back your claim."
>
> Ack. The imagemagick bug at least seems to be a false positive
> create by an efence bug.
>
> Cheers Nico
Ok, I'm going to hold off then on CVE's, sounds like a few more days
and we'll know if these are real or not. If i haven't heard by Friday
remind me to poke at it.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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