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Bug 720704

Summary:	Assigning negative number to unsigned variable
Product:	Red Hat Enterprise Linux 6	Reporter:	Michal Luscon <mluscon>
Component:	net-snmp	Assignee:	Jan Safranek <jsafrane>
Status:	CLOSED ERRATA	QA Contact:	BaseOS QE Security Team <qe-baseos-security>
Severity:	high	Docs Contact:
Priority:	high
Version:	6.1	CC:	jwest, ksrot, mdarade, ovasik, SCHAKRAB
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	The snmpd daemon did not properly check result of reading from a network socket in SMUX module. The snmpd daemon could miss some network errors this way and thus couldn't close these erroneous SMUX sessions. With this update, snmpd properly checks for errors when reading from SMUX socket and reacts to them properly.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-12-06 17:12:11 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	868176

Description Michal Luscon 2011-07-12 14:43:03 UTC

Description of problem:

net-snmp-5.5/agent/mibgroup/smux/smux.c:1396 - Function recvfrom returns a negative number to unsigned variable length (size_t). 

Version-Release number of selected component (if applicable):
5.5-31.3

Additional info:
This defect was probably introduced by Red Hat patches.

Comment 3 Jan Safranek 2011-08-01 11:59:49 UTC

I've fixed it upstream, commit ID 40125d8539cd89f952fbc24588c5e81e9cd821fe.

Comment 4 Jan Safranek 2011-08-11 12:19:55 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
The snmpd daemon did not properly check result of reading from a network socket in SMUX module. The snmpd daemon could miss some network errors this way and thus couldn't close these erroneous SMUX sessions. With this update, snmpd properly checks for errors when reading from SMUX socket and reacts to them properly.

Comment 7 errata-xmlrpc 2011-12-06 17:12:11 UTC

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-2011-1524.html

Comment 8 Jan Safranek 2011-12-13 12:46:07 UTC

*** Bug 767148 has been marked as a duplicate of this bug. ***