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GLSA 200505-18: Net-SNMP: fixproc insecure temporary file creation
Posted by Philipp Esselbach on: 05/23/2005 03:35 PM [ Print | 0 comment(s) ]
A Net-SNMP security update is available for Gentoo Linux
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Gentoo Linux Security Advisory GLSA 200505-18
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http://security.gentoo.org/
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Severity: Normal
Title: Net-SNMP: fixproc insecure temporary file creation
Date: May 23, 2005
Bugs: #91792
ID: 200505-18
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Synopsis
=======
Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200505-18
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: Net-SNMP: fixproc insecure temporary file creation
Date: May 23, 2005
Bugs: #91792
ID: 200505-18
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
=======
Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code.
Background
=========
Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/net-snmp lt; 5.2.1-r1 gt;= 5.2.1-r1
Description
==========
The fixproc application of Net-SNMP creates temporary files with predictable filenames.
Impact
=====
A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All Net-SNMP users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-analyzer/net-snmp-5.2.1-r1"
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200505-18.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
=========
Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/net-snmp lt; 5.2.1-r1 gt;= 5.2.1-r1
Description
==========
The fixproc application of Net-SNMP creates temporary files with predictable filenames.
Impact
=====
A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All Net-SNMP users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose "gt;=net-analyzer/net-snmp-5.2.1-r1"
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200505-18.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
