oss-sec mailing list archives
CVE request: net-snmp agentx incorrect handling of multi-object requests DoS
From: Raphael Geissert <geissert () debian org>
Date: Thu, 6 Mar 2014 15:22:07 +0100
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? Thanks Upstream bug report: http://sourceforge.net/p/net-snmp/patches/1113/ More explicit impact: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684388 Cheers, -- Raphael Geissert - Debian Developer www.debian.org - get.debian.net
Current thread:
- CVE request: net-snmp agentx incorrect handling of multi-object requests DoS Raphael Geissert (Mar 06)
- Re: CVE request: net-snmp agentx incorrect handling of multi-object requests DoS Huzaifa Sidhpurwala (Mar 06)
- Re: CVE request: net-snmp agentx incorrect handling of multi-object requests DoS Raphael Geissert (Mar 07)
- Re: CVE request: net-snmp agentx incorrect handling of multi-object requests DoS cve-assign (Mar 07)
- Re: CVE request: net-snmp agentx incorrect handling of multi-object requests DoS Huzaifa Sidhpurwala (Mar 06)