Bug 983116 – net-snmp query fails after update to 1:5.5-44.el6_4.2

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Bug 983116 - net-snmp query fails after update to 1:5.5-44.el6_4.2

Summary:	net-snmp query fails after update to 1:5.5-44.el6_4.2

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	net-snmp (Show other bugs)
Sub Component:
Version:	6.4
Hardware:	x86_64 Linux

Priority	unspecified Severity medium
Target Milestone:	rc
Target Release:	---
Assigned To:	Jan Safranek
QA Contact:	Dalibor Pospíšil
Docs Contact:

URL:
Whiteboard:
Keywords:	Regression

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2013-07-10 10:19 EDT by maarten
Modified:	2014-05-02 07:52 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	Cause: The previous Net-SNMP update contained a fix to improve checking of invalid incoming SNMP messages. This fix introduced a regression and some valid SNMP messages with multiple variables inside might be marked as invalid. Consequence: Net-SNMP tools and servers might reject valid SNMP messages and wait for "proper" response until timeout. Fix: Valid SNMP messages are not rejected. Result: The servers and utilities accept first incoming message and do not wait for a timeout.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2013-11-21 17:50:40 EST
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Knowledge Base (Solution)	501873	None	None	None	Never
Red Hat Product Errata	RHBA-2013:1693	normal	SHIPPED_LIVE	net-snmp bug fix and enhancement update	2013-11-20 16:52:17 EST

Groups: None (edit)

Description maarten 2013-07-10 10:19:43 EDT

Description of problem:

after update from net-snmp  1:5.5-44.el6_4.1  to 1:5.5-44.el6_4.2

a snmp query times out



Version-Release number of selected component (if applicable): 1:5.5-44.el6_4.1/1:5.5-44.el6_4.2

How reproducible:



Steps to Reproduce:
1. yum rollback
2. test 
3. yum install, test again 

Actual results:
$ time { snmpbulkwalk -t 30  -v2c -c 'xxxxx' -m '' -M '' -Cc -On -Ob -OQ -Ot 145.92.231.151 1.3.6.1.4.1; }
.1.3.6.1.4.1.2021.2.1.1.1 = 1
[cut]
Timeout: No Response from 145.92.231.151

real	3m0.275s
user	0m0.002s
sys	0m0.003s

Expected results:
$ time { snmpbulkwalk -t 30  -v2c -c 'xxxxx' -m '' -M '' -Cc -On -Ob -OQ -Ot 145.92.231.151 1.3.6.1.4.1; }
.1.3.6.1.4.1.2021.2.1.1.1 = 1
[cut]
.1.3.6.1.4.1.8072.1.3.2.1.0 = 0

real	0m20.090s
user	0m0.488s
sys	0m0.187s



real	0m20.090s
user	0m0.488s
sys	0m0.187s


Additional info:

Comment 2 Jan Safranek 2013-08-12 08:34:34 EDT

Thanks for the report!

I've fixed it upstream in commit e41c2f574c25d8dd273f2406eeeac19bc2ae16db.

Comment 6 maarten 2013-08-16 09:10:21 EDT

Hi,

I have done the same test (snmp query) with net-snmp.x86_64              1:5.5-44.el6_4.4 and I get the same result: time out.

Regards,
Maarten

Comment 9 errata-xmlrpc 2013-11-21 17:50:40 EST

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-1693.html

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