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Date: Fri, 07 Mar 2014 10:38:46 +0530
From: Huzaifa Sidhpurwala <huzaifas@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: net-snmp agentx incorrect handling
of multi-object requests DoS
On 03/06/2014 07:52 PM, Raphael Geissert wrote:
> Hi,
>
> It was found that the AgentX subagent of net-snmp can be stalled when
> a manager sends a multi-object request with a different number of
> subids. From the Debian bug report:
>
>> This happens if one of the requested OID is larger than the previous one:
>>
>> agentx/master: request for variable (iso.3.6.1.2.1.2.2.1.7.7)
>> agentx/master: request for variable (iso.3.6.1.2.1.2.2.1.2.10)
>> agentx/master: request for variable (iso.3.6.1.2.1.2.2.1.8.7)
>> agentx/master: request for variable (iso.3.6.1.3.53.5.5.2.1.3.101)
>>
>> First three OID contain 11 subid while the next one has 12 subid.
>
> Resulting error message from the subagent:
>> agentx: Oversized Object ID
>
> The bug is fixed upstream for the 5.4 branch in 5.4.4. From the
> upstream bug report this was also fixed in the 5.3 branch but I don't
> know on what specific version.
>
> Could a CVE id be assigned?
>
Isnt this same as:
https://bugzilla.redhat.com/show_bug.cgi?id=1038007 ?
--
Huzaifa Sidhpurwala / Red Hat Security Response Team
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