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Date: Wed, 30 Jun 2010 08:05:50 +0800
From: Eugene Teo <eugeneteo@...nel.sg>
To: oss-security@...ts.openwall.com
CC: akuster <akuster@...sta.com>, "Steven M. Christey" <coley@...us.mitre.org>
Subject: CVE Request: kernel: ethtool: kernel buffer overflow in ETHTOOL_GRXCLSRLALL

On 06/29/2010 11:53 PM, akuster wrote:
> Eugene,
>
> Thanks for the info. Unfortunately it does affect a few MontaVista
> kernels. Is it possible to get a CVE for this?

I edited the $SUBJECT :)

Eugene

> On 06/28/2010 04:10 PM, Eugene Teo wrote:
>> FYI, "On a 32-bit machine, info.rule_cnt>= 0x40000000 leads to integer
>> overflow and the buffer may be smaller than needed.  Since
>> ETHTOOL_GRXCLSRLALL is unprivileged, this can presumably be used for at
>> least denial of service." This was introduced in v2.6.27-rc1 via
>> upstream commit 0853ad66. Also see commit 59089d8d.
>>
>> Reference:
>> http://thread.gmane.org/gmane.linux.network/164869
>> https://bugzilla.redhat.com/show_bug.cgi?id=608950
>>
>> I'm not requesting a CVE name for this as it did not affect any of our
>> Red Hat supported Linux kernels.
>>
>> Thanks, Eugene


-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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